diff --git a/src/components/InputTabs.js b/src/components/InputTabs.js
index 33d5619..9b6cbac 100644
--- a/src/components/InputTabs.js
+++ b/src/components/InputTabs.js
@@ -24,7 +24,7 @@ function InputTabs(props) {
   return (
     <Form.Group>
       <Form.Label style={{ fontWeight: "bold" }}>{props.name}</Form.Label>
-      <Tabs activeKey={activeSource} id="dataTabs" onSelect={handleTabChange}>
+      <Tabs activeKey={activeSource} id="dataTabs" onSelect={handleTabChange} mountOnEnter={true}>
         <Tab eventKey={API.sources.byText} title="Text">
           <ByText
             name={props.byTextName}
diff --git a/src/context/ApplicationContext.js b/src/context/ApplicationContext.js
index 681c0f6..1c7b635 100644
--- a/src/context/ApplicationContext.js
+++ b/src/context/ApplicationContext.js
@@ -1,5 +1,4 @@
 import { createContext } from "react";
-import { InitialData } from "../data/Data";
 import { InitialQuery } from "../query/Query";
 import { InitialShacl } from "../shacl/Shacl";
 import { InitialShapeMap } from "../shapeMap/ShapeMap";
@@ -8,7 +7,9 @@ import { InitialUML } from "../uml/UML";
 
 // Initial values in context
 export const initialApplicationContext = {
-  rdfData: InitialData, // Array of data (merge uses 2 units of data and more data compound could be added in the future)
+  // Array of data (merge uses 2 units of data and more data compound could be added in the future)
+  // See provider for the function to add new data
+  rdfData: [],
   sparqlQuery: InitialQuery,
   sparqlEndpoint: "",
   shexSchema: InitialShex,
diff --git a/src/context/ApplicationProvider.js b/src/context/ApplicationProvider.js
index 59914e8..a4c826e 100644
--- a/src/context/ApplicationProvider.js
+++ b/src/context/ApplicationProvider.js
@@ -109,12 +109,11 @@ const ApplicationProvider = ({ children }) => {
           dispatch({ type: reducerTypes.rdf, value: rdfData }),
         addRdfData: (rdfData) => {
           const newIndex = applicationData.rdfData.length; // new Data index based on current context data
-          const newData = rdfData // New data object, use InitialData if no data was provided
-            ? { index: newIndex, ...rdfData }
-            : {
-                index: newIndex,
-                ...InitialData,
-              };
+          // New data object, use InitialData if no data was provided
+          const newData = {
+            index: newIndex,
+            ...(rdfData || InitialData),
+          };
           dispatch({ type: reducerTypes.addRdf, value: newData }); // Update state and return new data
           return newData;
         },
diff --git a/src/data/Data.js b/src/data/Data.js
index e1a5f0d..be64ea7 100644
--- a/src/data/Data.js
+++ b/src/data/Data.js
@@ -77,7 +77,7 @@ export function mkDataTabs(
     setData({ ...data, activeSource: value });
   }
   function handleDataByTextChange(value, y, change) {
-    onTextChange(value, y, change);
+    // onTextChange(value, y, change);
     setData({ ...data, textArea: value });
   }
   function handleDataUrlChange(value) {
diff --git a/src/data/DataConvert.js b/src/data/DataConvert.js
index a8fdb5c..c33de1c 100644
--- a/src/data/DataConvert.js
+++ b/src/data/DataConvert.js
@@ -17,30 +17,34 @@ import ResultDataConvert from "../results/ResultDataConvert";
 import { mkError } from "../utils/ResponseError";
 import {
   getDataText,
-  InitialData,
   mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "./Data";
 
 function DataConvert(props) {
+  const {
+    rdfData: [ctxData],
+    addRdfData,
+  } = useContext(ApplicationContext);
+
+  const [data, setData] = useState(ctxData || addRdfData());
+  const [dataTargetFormat, setDataTargetFormat] = useState(
+    API.formats.defaultData
+  );
   const [result, setResult] = useState("");
+
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
+
   const [permalink, setPermalink] = useState(null);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState(null);
-  const [data, setData] = useState(InitialData);
-  const [dataTargetFormat, setDataTargetFormat] = useState(
-    API.formats.defaultData
-  );
+
   const [progressPercent, setProgressPercent] = useState(0);
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user input data from context, if any. Use first item of the data array
-  const { rdfData: ctxData } = useContext(ApplicationContext);
-
   const url = API.routes.server.dataConvert;
 
   function handleTargetDataFormatChange(value) {
@@ -74,8 +78,6 @@ function DataConvert(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else if (ctxData && typeof ctxData === "object") {
-      setData(ctxData);
     }
   }, [props.location?.search]);
 
diff --git a/src/data/DataExtract.js b/src/data/DataExtract.js
index 3e99635..06afd81 100644
--- a/src/data/DataExtract.js
+++ b/src/data/DataExtract.js
@@ -17,16 +17,20 @@ import ResultDataExtract from "../results/ResultDataExtract";
 import NodeSelector from "../shex/NodeSelector";
 import { mkError } from "../utils/ResponseError";
 import {
-  getDataText,
-  InitialData,
-  mkDataTabs,
+  getDataText, mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "./Data";
 import { getNodesFromForm } from "./TurtleForm";
 
 function DataExtract(props) {
-  const [data, setData] = useState(InitialData);
+  // Recover user input data and query from context, if any. Use first item of the data array
+  const {
+    rdfData: [ctxData],
+    addRdfData,
+  } = useContext(ApplicationContext);
+
+  const [data, setData] = useState(ctxData || addRdfData());
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
   const [loading, setLoading] = useState(false);
@@ -41,11 +45,6 @@ function DataExtract(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user input data and query from context, if any. Use first item of the data array
-  const {
-    rdfData: [ctxData],
-  } = useContext(ApplicationContext);
-
   const urlServerExtract = API.routes.server.dataExtract;
   const urlServerVisualize = API.routes.server.schemaConvert;
 
@@ -65,8 +64,6 @@ function DataExtract(props) {
         setParams(newParams);
         setLastParams(newParams);
       } else setError(API.texts.errorParsingUrl);
-    } else {
-      if (ctxData && typeof ctxData === "object") setData(ctxData);
     }
   }, [props.location?.search]);
 
diff --git a/src/data/DataInfo.js b/src/data/DataInfo.js
index 6c0f1e3..6aea056 100644
--- a/src/data/DataInfo.js
+++ b/src/data/DataInfo.js
@@ -16,15 +16,20 @@ import ResultDataInfo from "../results/ResultDataInfo";
 import { processDotData } from "../utils/dot/dotUtils";
 import { mkError } from "../utils/ResponseError";
 import {
-  getDataText,
-  InitialData,
-  mkDataTabs,
+  getDataText, mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "./Data";
 
 function DataInfo(props) {
-  const [data, setData] = useState(InitialData);
+  // Recover user input data from context, if any. Use first item of the data array
+  const {
+    rdfData: [ctxData],
+    addRdfData,
+  } = useContext(ApplicationContext);
+
+  // Set initial data from context, if possible
+  const [data, setData] = useState(ctxData || addRdfData());
 
   const [result, setResult] = useState(null);
 
@@ -41,9 +46,6 @@ function DataInfo(props) {
   const urlInfo = API.routes.server.dataInfo;
   const urlVisual = API.routes.server.dataConvert;
 
-  // Recover user input data from context, if any. Use first item of the data array
-  const { rdfData: ctxData } = useContext(ApplicationContext);
-
   // Try to autofill user data, first from the query string then from context
   useEffect(() => {
     if (props.location?.search) {
@@ -61,8 +63,6 @@ function DataInfo(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else if (ctxData && typeof ctxData === "object") {
-      setData(ctxData); // Set the data in context so that UI changes
     }
   }, [props.location?.search]);
 
diff --git a/src/data/DataMerge.js b/src/data/DataMerge.js
index 5fe079a..30846b1 100644
--- a/src/data/DataMerge.js
+++ b/src/data/DataMerge.js
@@ -18,15 +18,19 @@ import { mkError } from "../utils/ResponseError";
 import { getFileContents } from "../utils/Utils";
 import {
   getDataText,
-  InitialData,
   mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "./Data";
 
 function DataMerge(props) {
-  const [data1, setData1] = useState(InitialData);
-  const [data2, setData2] = useState(InitialData);
+  // Recover user input data from context, if any. Use 2 items of the data array
+  const { rdfData: rdfDataSet, addRdfData } = useContext(ApplicationContext);
+  const [ctxData1, ctxData2] = rdfDataSet;
+
+  const [data1, setData1] = useState(ctxData1 || addRdfData());
+  const [data2, setData2] = useState(ctxData2 || addRdfData());
+
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
   const [dataTargetFormat, setDataTargetFormat] = useState(
@@ -40,9 +44,6 @@ function DataMerge(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user input data from context, if any. Use 2 items of the data array
-  const { rdfData: ctxData1, addRdfData } = useContext(ApplicationContext);
-
   const url = API.routes.server.dataConvert;
 
   function handleTargetDataFormatChange(value) {
@@ -88,13 +89,6 @@ function DataMerge(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else if (ctxData1 && typeof ctxData1 === "object") {
-      // Set the data in context so that UI changes
-      setData1(ctxData1);
-      // If there's no "data2" because it is the first time in the page, add a new data element
-      // to the data array in context
-      // setData2(ctxData2 || addRdfData());
-      setData2(InitialData);
     }
   }, [props.location?.search]);
 
diff --git a/src/data/DataQuery.js b/src/data/DataQuery.js
index d5ee145..dc45b57 100644
--- a/src/data/DataQuery.js
+++ b/src/data/DataQuery.js
@@ -23,16 +23,21 @@ import {
 import ResultSparqlQuery from "../results/ResultSparqlQuery";
 import { mkError } from "../utils/ResponseError";
 import {
-  getDataText,
-  InitialData,
-  mkDataTabs,
+  getDataText, mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "./Data";
 
 function DataQuery(props) {
-  const [data, setData] = useState(InitialData);
-  const [query, setQuery] = useState(InitialQuery);
+  // Recover user input data and query from context, if any. Use first item of the data array
+  const {
+    rdfData: [ctxData],
+    sparqlQuery: ctxQuery,
+    addRdfData,
+  } = useContext(ApplicationContext);
+
+  const [data, setData] = useState(ctxData || addRdfData());
+  const [query, setQuery] = useState(ctxQuery || InitialQuery);
 
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
@@ -46,12 +51,6 @@ function DataQuery(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user input data and query from context, if any. Use first item of the data array
-  const {
-    rdfData: [ctxData],
-    sparqlQuery: ctxQuery,
-  } = useContext(ApplicationContext);
-
   const url = API.routes.server.dataQuery;
 
   useEffect(() => {
@@ -74,9 +73,6 @@ function DataQuery(props) {
 
       setParams(params);
       setLastParams(params);
-    } else {
-      if (ctxData && typeof ctxData === "object") setData(ctxData);
-      if (ctxQuery && typeof ctxQuery === "object") setQuery(ctxQuery);
     }
   }, [props.location?.search]);
 
diff --git a/src/data/DataTabs.js b/src/data/DataTabs.js
index 12d101d..c59ddce 100644
--- a/src/data/DataTabs.js
+++ b/src/data/DataTabs.js
@@ -1,5 +1,5 @@
 import PropTypes from "prop-types";
-import React, { useContext, useEffect, useState } from "react";
+import React, { useContext, useEffect } from "react";
 import API from "../API";
 import InputTabsWithFormat from "../components/InputTabsWithFormat";
 import { ApplicationContext } from "../context/ApplicationContext";
@@ -10,37 +10,40 @@ function DataTabs(props) {
     ApplicationContext
   );
 
-  const [dataIndex] = useState(props?.data?.index);
+  const dataIndex = props?.data?.index;
 
   // Change context when the contained data changes
   useEffect(() => {
-    // const newDataset = ctxDataSet.reduce(
-    //   (acc, curr, idx) =>
-    //     dataIndex === idx ? [...acc, props.data] : [...acc, curr],
-    //   []
-    // );
-    setCtxDataSet(props.data);
+    if (props.data) {
+      // Reducer, insert the modified data in the corresponding index
+      const newDataset = ctxDataSet.reduce(
+        (acc, curr) =>
+          dataIndex === curr.index ? [...acc, props.data] : [...acc, curr],
+        []
+      );
+      setCtxDataSet(newDataset);
+    }
   }, [props.data]);
 
   return (
     <div>
       <InputTabsWithFormat
         nameInputTab={props.name}
-        activeSource={props.activeSource || ctxDataSet.activeSource} // Change according to data in context when needed
+        activeSource={props.activeSource || ctxDataSet[dataIndex]?.activeSource} // Change according to data in context when needed
         handleTabChange={props.handleTabChange}
         byTextName={props.subname}
-        textAreaValue={props.textAreaValue || ctxDataSet.textArea}
+        textAreaValue={props.textAreaValue || ctxDataSet[dataIndex]?.textArea}
         byTextPlaceholder={API.texts.placeholders.rdf}
         handleByTextChange={props.handleByTextChange}
         handleUrlChange={props.handleDataUrlChange}
         urlValue={props.urlValue || ctxDataSet[dataIndex]?.url}
         byURLPlaceholder={API.texts.placeholders.url}
         handleFileUpload={props.handleFileUpload}
-        selectedFormat={props.selectedFormat || ctxDataSet.format}
+        selectedFormat={props.selectedFormat || ctxDataSet[dataIndex]?.format}
         handleFormatChange={props.handleDataFormatChange}
         urlFormats={API.routes.server.dataFormatsInput}
         setCodeMirror={props.setCodeMirror}
-        fromParams={props.fromParams || ctxDataSet.fromParams}
+        fromParams={props.fromParams || ctxDataSet[dataIndex]?.fromParams}
         resetFromParams={props.resetFromParams}
       />
     </div>
diff --git a/src/data/SelectInferenceEngine.js b/src/data/SelectInferenceEngine.js
index f3c0ff4..1c7ac79 100644
--- a/src/data/SelectInferenceEngine.js
+++ b/src/data/SelectInferenceEngine.js
@@ -14,6 +14,9 @@ function SelectInferenceEngine(props) {
     ? inferenceTargets.shacl
     : inferenceTargets.rdf;
 
+  // In case we are manipulating data, the index in the data array that we are manipulating
+  const dataIndex = props?.data?.index;
+
   // Get potentially necessary data from context
   const {
     rdfData: ctxDataSet,
@@ -25,14 +28,15 @@ function SelectInferenceEngine(props) {
   useEffect(() => {
     switch (inferenceTarget) {
       case inferenceTargets.rdf:
-        setCtxDataSet(props.data);
-      // setCtxDataSet(
-      //   ctxDataSet.reduce(
-      //     (acc, curr, idx) =>
-      //       props.data.index === idx ? [...acc, props.data] : [...acc, curr],
-      //     []
-      //   )
-      // );
+        // setCtxDataSet(props.data);
+        // setCtxDataSet([props.data]);
+        setCtxDataSet(
+          ctxDataSet.reduce(
+            (acc, curr) =>
+              dataIndex === curr.index ? [...acc, props.data] : [...acc, curr],
+            []
+          )
+        );
       case inferenceTargets.shacl:
         setCtxShacl(props.shacl);
       default:
@@ -40,9 +44,6 @@ function SelectInferenceEngine(props) {
     }
   }, [props.data, props.shacl]);
 
-  // In case we are manipulating data, the index in the data array that we are manipulating
-  const dataIndex = props?.data?.index || 0;
-
   return (
     <SelectFormat
       handleFormatChange={props.handleInferenceChange}
@@ -50,7 +51,7 @@ function SelectInferenceEngine(props) {
         props.selectedInference ||
         (inferenceTarget === inferenceTargets.shacl
           ? ctxShacl.inference
-          : ctxDataSet.inference)
+          : ctxDataSet[dataIndex]?.inference)
       }
       urlFormats={API.routes.server.inferenceEngines}
       name={props.name}
diff --git a/src/endpoint/EndpointInfo.js b/src/endpoint/EndpointInfo.js
index 788bdc8..a0e0733 100644
--- a/src/endpoint/EndpointInfo.js
+++ b/src/endpoint/EndpointInfo.js
@@ -16,7 +16,9 @@ import { mkError } from "../utils/ResponseError";
 import EndpointInput from "./EndpointInput";
 
 function EndpointInfo(props) {
-  const [endpoint, setEndpoint] = useState("");
+  const { sparqlEndpoint: ctxEndpoint } = useContext(ApplicationContext);
+
+  const [endpoint, setEndpoint] = useState(ctxEndpoint || "");
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
   const [result, setResult] = useState(null);
@@ -25,8 +27,6 @@ function EndpointInfo(props) {
   const [permalink, setPermalink] = useState(null);
   const [progressPercent, setProgressPercent] = useState(0);
 
-  const { sparqlEndpoint: ctxEndpoint } = useContext(ApplicationContext);
-
   const url = API.routes.server.endpointInfo;
 
   useEffect(() => {
@@ -43,9 +43,6 @@ function EndpointInfo(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else {
-      if (ctxEndpoint && typeof ctxEndpoint === "string")
-        setEndpoint(ctxEndpoint);
     }
   }, [props.location?.search]);
 
diff --git a/src/endpoint/EndpointQuery.js b/src/endpoint/EndpointQuery.js
index db21c4d..b8c4eeb 100644
--- a/src/endpoint/EndpointQuery.js
+++ b/src/endpoint/EndpointQuery.js
@@ -24,22 +24,26 @@ import { mkError } from "../utils/ResponseError";
 import EndpointInput from "./EndpointInput";
 
 function EndpointQuery(props) {
-  const [endpoint, setEndpoint] = useState("");
+  // Recover user endpoint and query from context, if any
+  const { sparqlEndpoint: ctxEndpoint, sparqlQuery: ctxQuery } = useContext(
+    ApplicationContext
+  );
+
+  const [endpoint, setEndpoint] = useState(ctxEndpoint || "");
+  const [query, setQuery] = useState(ctxQuery || InitialQuery);
+
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
+
   const [result, setResult] = useState("");
   const [error, setError] = useState("");
-  const [query, setQuery] = useState(InitialQuery);
+
   const [permalink, setPermalink] = useState(null);
   const [loading, setLoading] = useState(false);
+
   const [progressPercent, setProgressPercent] = useState(0);
   const [controlPressed, setControlPressed] = useState(false);
 
-  // Recover user endpoint and query from context, if any
-  const { sparqlEndpoint: ctxEndpoint, sparqlQuery: ctxQuery } = useContext(
-    ApplicationContext
-  );
-
   const url = API.routes.server.wikibaseQuery;
 
   useEffect(() => {
@@ -58,10 +62,6 @@ function EndpointQuery(props) {
 
       setParams(newParams);
       setLastParams(newParams);
-    } else {
-      if (ctxEndpoint && typeof ctxEndpoint === "string")
-        setEndpoint(ctxEndpoint);
-      if (ctxQuery && typeof ctxQuery === "object") setQuery(ctxQuery);
     }
   }, [props.location?.search]);
 
diff --git a/src/shacl/ShaclConvert.js b/src/shacl/ShaclConvert.js
index 9d7982e..7461634 100644
--- a/src/shacl/ShaclConvert.js
+++ b/src/shacl/ShaclConvert.js
@@ -25,6 +25,10 @@ import {
 } from "./Shacl";
 
 function ShaclConvert(props) {
+  const { shaclSchema: ctxShacl } = useContext(ApplicationContext);
+
+  const [shacl, setShacl] = useState(ctxShacl || InitialShacl);
+
   const [targetSchemaFormat, setTargetSchemaFormat] = useState(
     API.formats.defaultShacl
   );
@@ -33,8 +37,6 @@ function ShaclConvert(props) {
     API.engines.shaclex
   );
 
-  const [shacl, setShacl] = useState(InitialShacl);
-
   const [result, setResult] = useState("");
 
   const [params, setParams] = useState(null);
@@ -47,8 +49,6 @@ function ShaclConvert(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  const { shaclSchema: ctxShacl } = useContext(ApplicationContext);
-
   const urlConvert = API.routes.server.schemaConvert;
 
   useEffect(() => {
@@ -80,8 +80,6 @@ function ShaclConvert(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else {
-      if (ctxShacl && typeof ctxShacl === "object") setShacl(ctxShacl);
     }
   }, [props.location?.search]);
 
diff --git a/src/shacl/ShaclInfo.js b/src/shacl/ShaclInfo.js
index 3988b86..56a421f 100644
--- a/src/shacl/ShaclInfo.js
+++ b/src/shacl/ShaclInfo.js
@@ -23,7 +23,9 @@ import {
 } from "./Shacl";
 
 function ShaclInfo(props) {
-  const [shacl, setShacl] = useState(InitialShacl);
+  const { shaclSchema: ctxShacl } = useContext(ApplicationContext);
+
+  const [shacl, setShacl] = useState(ctxShacl || InitialShacl);
 
   const [result, setResult] = useState("");
 
@@ -37,8 +39,6 @@ function ShaclInfo(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  const { shaclSchema: ctxShacl } = useContext(ApplicationContext);
-
   const urlInfo = API.routes.server.schemaInfo;
   const urlVisual = API.routes.server.schemaConvert;
 
@@ -57,8 +57,6 @@ function ShaclInfo(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else {
-      if (ctxShacl && typeof ctxShacl === "object") setShacl(ctxShacl);
     }
   }, [props.location?.search]);
 
diff --git a/src/shacl/ShaclValidate.js b/src/shacl/ShaclValidate.js
index 9d24165..cfed461 100644
--- a/src/shacl/ShaclValidate.js
+++ b/src/shacl/ShaclValidate.js
@@ -12,9 +12,7 @@ import API from "../API";
 import PageHeader from "../components/PageHeader";
 import { ApplicationContext } from "../context/ApplicationContext";
 import {
-  getDataText,
-  InitialData,
-  mkDataTabs,
+  getDataText, mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "../data/Data";
@@ -31,11 +29,19 @@ import {
 } from "./Shacl";
 
 function ShaclValidate(props) {
-  const [shacl, setShacl] = useState(InitialShacl);
-  const [data, setData] = useState(InitialData);
+  // Get all required data from state: data, schema
+  const {
+    rdfData: [ctxData],
+    addRdfData,
+    shaclSchema: ctxShacl,
+    validationEndpoint: ctxValidationEndpoint,
+  } = useContext(ApplicationContext);
+
+  const [data, setData] = useState(ctxData || addRdfData());
+  const [shacl, setShacl] = useState(ctxShacl || InitialShacl);
 
-  const [endpoint, setEndpoint] = useState("");
-  const [withEndpoint, setWithEndpoint] = useState(false);
+  const [endpoint, setEndpoint] = useState(ctxValidationEndpoint || "");
+  const [withEndpoint, setWithEndpoint] = useState(!!ctxValidationEndpoint);
 
   const [result, setResult] = useState("");
 
@@ -49,13 +55,6 @@ function ShaclValidate(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Get all required data from state: data, schema, shapemap
-  const {
-    rdfData: [ctxData],
-    shaclSchema: ctxShacl,
-    validationEndpoint: ctxValidationEndpoint,
-  } = useContext(ApplicationContext);
-
   const url = API.routes.server.schemaValidate;
 
   useEffect(() => {
@@ -79,13 +78,6 @@ function ShaclValidate(props) {
       const newParams = mkParams(finalData, finalShacl, finalEndpoint);
       setParams(newParams);
       setLastParams(newParams);
-    } else {
-      if (ctxData && typeof ctxData === "object") setData(ctxData);
-      if (ctxShacl && typeof ctxShacl === "object") setShacl(ctxShacl);
-      if (ctxValidationEndpoint && typeof ctxValidationEndpoint === "string") {
-        setEndpoint(ctxValidationEndpoint);
-        setWithEndpoint(!!ctxValidationEndpoint);
-      }
     }
   }, [props.location?.search]);
 
diff --git a/src/shapeMap/ShapeMapInfo.js b/src/shapeMap/ShapeMapInfo.js
index cea45ef..ec78e03 100644
--- a/src/shapeMap/ShapeMapInfo.js
+++ b/src/shapeMap/ShapeMapInfo.js
@@ -22,20 +22,24 @@ import {
 } from "./ShapeMap";
 
 function ShapeMapInfo(props) {
-  const [shapemap, setShapemap] = useState(InitialShapeMap);
+  // Recover user shapeMap from context, if any
+  const { shapeMap: ctxShapeMap } = useContext(ApplicationContext);
+
+  const [shapemap, setShapemap] = useState(ctxShapeMap || InitialShapeMap);
+
   const [result, setResult] = useState(null);
+
   const [params, setParams] = useState(null);
   const [lastParams, setLastParams] = useState(null);
+
   const [error, setError] = useState(null);
   const [loading, setLoading] = useState(false);
   const [permalink, setPermalink] = useState(null);
+
   const [progressPercent, setProgressPercent] = useState(0);
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user shapeMap from context, if any
-  const { shapeMap: ctxShapeMap } = useContext(ApplicationContext);
-
   const url = API.routes.server.shapeMapInfo;
 
   useEffect(() => {
@@ -50,9 +54,6 @@ function ShapeMapInfo(props) {
         setParams(params);
         setLastParams(params);
       } else setError(API.texts.errorParsingUrl);
-    } else {
-      if (ctxShapeMap && typeof ctxShapeMap === "object")
-        setShapemap(ctxShapeMap);
     }
   }, [props.location?.search]);
 
diff --git a/src/shex/ShexConvert.js b/src/shex/ShexConvert.js
index a57f101..5b2564d 100644
--- a/src/shex/ShexConvert.js
+++ b/src/shex/ShexConvert.js
@@ -35,6 +35,10 @@ import {
 } from "./Shex";
 
 function ShexConvert(props) {
+  const { shexSchema: ctxShex } = useContext(ApplicationContext);
+
+  const [shex, setShex] = useState(ctxShex || InitialShex);
+
   const [targetSchemaFormat, setTargetSchemaFormat] = useState(
     API.formats.defaultShex
   );
@@ -42,7 +46,6 @@ function ShexConvert(props) {
   const [targetSchemaEngine, setTargetSchemaEngine] = useState(
     API.engines.shex
   );
-  const [shex, setShex] = useState(InitialShex);
 
   const [result, setResult] = useState("");
 
@@ -56,8 +59,6 @@ function ShexConvert(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  const { shexSchema: ctxShex } = useContext(ApplicationContext);
-
   const urlConvert = API.routes.server.schemaConvert;
 
   // Store the current result type as one of these to know which result component to render
@@ -112,8 +113,6 @@ function ShexConvert(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else {
-      if (ctxShex && typeof ctxShex === "object") setShex(ctxShex);
     }
   }, [props.location?.search]);
 
diff --git a/src/shex/ShexInfo.js b/src/shex/ShexInfo.js
index 724d977..ed6138c 100644
--- a/src/shex/ShexInfo.js
+++ b/src/shex/ShexInfo.js
@@ -23,7 +23,9 @@ import {
 } from "./Shex";
 
 function ShexInfo(props) {
-  const [shex, setShEx] = useState(InitialShex);
+  const { shexSchema: ctxShex } = useContext(ApplicationContext);
+
+  const [shex, setShEx] = useState(ctxShex || InitialShex);
 
   const [result, setResult] = useState("");
 
@@ -37,8 +39,6 @@ function ShexInfo(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  const { shexSchema: ctxShex } = useContext(ApplicationContext);
-
   const urlInfo = API.routes.server.schemaInfo;
   const urlVisual = API.routes.server.schemaConvert;
 
@@ -57,8 +57,6 @@ function ShexInfo(props) {
       } else {
         setError(API.texts.errorParsingUrl);
       }
-    } else {
-      if (ctxShex && typeof ctxShex === "object") setShEx(ctxShex);
     }
   }, [props.location?.search]);
 
diff --git a/src/shex/ShexValidate.js b/src/shex/ShexValidate.js
index 36849f4..6daaca7 100644
--- a/src/shex/ShexValidate.js
+++ b/src/shex/ShexValidate.js
@@ -12,9 +12,7 @@ import API from "../API";
 import PageHeader from "../components/PageHeader";
 import { ApplicationContext } from "../context/ApplicationContext";
 import {
-  getDataText,
-  InitialData,
-  mkDataTabs,
+  getDataText, mkDataTabs,
   paramsFromStateData,
   updateStateData
 } from "../data/Data";
@@ -38,9 +36,17 @@ import {
 } from "./Shex";
 
 function ShexValidate(props) {
-  const [data, setData] = useState(InitialData);
-  const [shex, setShEx] = useState(InitialShex);
-  const [shapeMap, setShapeMap] = useState(InitialShapeMap);
+  // Get all required data from state: data, schema, shapemap
+  const {
+    rdfData: [ctxData],
+    shexSchema: ctxShex,
+    shapeMap: ctxShapeMap,
+    addRdfData,
+  } = useContext(ApplicationContext);
+
+  const [data, setData] = useState(ctxData || addRdfData());
+  const [shex, setShEx] = useState(ctxShex || InitialShex);
+  const [shapeMap, setShapeMap] = useState(ctxShapeMap || InitialShapeMap);
 
   const [endpoint, setEndpoint] = useState("");
   const [withEndpoint, setWithEndpoint] = useState(false); // UI reference
@@ -57,13 +63,6 @@ function ShexValidate(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Get all required data from state: data, schema, shapemap
-  const {
-    rdfData: [ctxData],
-    shexSchema: ctxShex,
-    shapeMap: ctxShapeMap,
-  } = useContext(ApplicationContext);
-
   const url = API.routes.server.schemaValidate;
 
   useEffect(() => {
@@ -101,11 +100,6 @@ function ShexValidate(props) {
 
       setParams(newParams);
       setLastParams(newParams);
-    } else {
-      if (ctxData && typeof ctxData === "object") setData(ctxData);
-      if (ctxShex && typeof ctxShex === "object") setShEx(ctxShex);
-      if (ctxShapeMap && typeof ctxShapeMap === "object")
-        setShapeMap(ctxShapeMap);
     }
   }, [props.location?.search]);
 
diff --git a/src/shex/Xmi2Shex.js b/src/shex/Xmi2Shex.js
index bbf3aab..8a10652 100644
--- a/src/shex/Xmi2Shex.js
+++ b/src/shex/Xmi2Shex.js
@@ -25,7 +25,10 @@ import { mkError } from "../utils/ResponseError";
 import { getConverterInput } from "../utils/xmiUtils/shumlexUtils";
 
 export default function Xmi2Shex(props) {
-  const [uml, setUml] = useState(InitialUML);
+  // Recover user input data from context, if any. Use first item of the data array
+  const { umlData: ctxUml } = useContext(ApplicationContext);
+
+  const [uml, setUml] = useState(ctxUml || InitialUML);
 
   const [result, setResult] = useState(null);
 
@@ -39,9 +42,6 @@ export default function Xmi2Shex(props) {
 
   const [disabledLinks, setDisabledLinks] = useState(false);
 
-  // Recover user input data from context, if any. Use first item of the data array
-  const { umlData: ctxUml } = useContext(ApplicationContext);
-
   useEffect(() => {
     if (props.location?.search) {
       const queryParams = qs.parse(props.location.search);
@@ -72,8 +72,6 @@ export default function Xmi2Shex(props) {
         setUpHistory();
         doRequest();
       }
-    } else {
-      if (ctxUml && typeof ctxUml === "object") setUml(ctxUml);
     }
   }, [params]);
 
diff --git a/src/uml/UMLTabs.js b/src/uml/UMLTabs.js
index bbb85ea..0bdac89 100644
--- a/src/uml/UMLTabs.js
+++ b/src/uml/UMLTabs.js
@@ -20,22 +20,22 @@ function UMLTabs(props) {
     <div>
       <InputTabs
         name={props.name}
-        activeSource={props.activeSource}
+        activeSource={props.activeSource || ctxUml.activeSource}
         handleTabChange={props.handleTabChange}
         byTextName={props.subname}
-        textAreaValue={props.textAreaValue}
+        textAreaValue={props.textAreaValue || ctxUml.textArea}
         byTextPlaceholder={API.texts.placeholders.xmi}
         handleByTextChange={props.handleByTextChange}
         setCodeMirror={props.setCodeMirror}
         inputForm={umlForm}
         handleUrlChange={props.handleXmiUrlChange}
-        urlValue={props.urlValue}
+        urlValue={props.urlValue || ctxUml.url}
         byURLPlaceholder={API.texts.placeholders.url}
         handleFileUpload={props.handleFileUpload}
-        mode={props.selectedFormat}
+        mode={props.selectedFormat || ctxUml.format}
         handleFormatChange={props.handleFormatChange}
         urlFormats={API.routes.server.shExFormats}
-        fromParams={props.fromParams}
+        fromParams={props.fromParams || ctxUml.fromParams}
         resetFromParams={props.resetFromParams}
       />
     </div>