add number layer

Author: thebino

config/corne.keymap

@@ -121,10 +121,18 @@
         };
     };
 
+    conditional_layers {
+        compatible = "zmk,conditional-layers";
+        tri_layer {
+            if-layers = <1 2>;
+            then-layer = <3>;
+        };
+    };
+
     macros {
         delete_word: delete_word {
-            label = "ZM_delete_word";
             compatible = "zmk,behavior-macro";
+            label = "ZM_delete_word";
             #binding-cells = <0>;
             bindings
                 = <&macro_press &kp LSHFT>
@@ -165,6 +173,15 @@
                                                                 &htl LOWER DEFAULT  &kp LCMD        &kp SPACE                       &kp RIGHT_CONTROL   &hm RALT DEL        &htl RAISE LOWER
             >;
         };
+
+        tri_layer {
+            bindings = <
+                &kp ESC         &none           &none           &none               &none           &none           &none           &kp N7              &kp N8              &kp N9              &none               &kp F11
+                &kp TAB         &none           &none           &none               &none           &none           &none           &kp N4              &kp N5              &kp N6              &none               &kp ENTER
+                &kp LSHFT       &none           &none           &none               &none           &none           &none           &kp N1              &kp N2              &kp N3              &none               &kp MINUS
+                                                                &htl LOWER DEFAULT  &kp LCMD        &kp SPACE                       &kp RIGHT_CONTROL   &hm RALT DEL        &htl RAISE LOWER
+            >;
+        };
     };
 };