diff --git a/Configuration.md b/Configuration.md
index 4568b19..f0a4cc0 100644
--- a/Configuration.md
+++ b/Configuration.md
@@ -81,6 +81,7 @@ queues:
 redis:
   url: # url of a running redis database
 validate_file: # (See "User Authentication Options" below)
+remote_validate_file: # (See "User Authentication Options" below)
 validate_ip: # (See "User Authentication Options" below)
 validate_custom_status_message: # (See "User Authentication Options" below)
 validate_user_not_allowed_message: # (See "User Authentication Options" below)
@@ -220,6 +221,12 @@ validate_custom_status_message:
 local_auth_login_name: shibboleth
 ```
 
+Additionally, MarkUs can be set to restrict remote logins based on username and/or IP when using remote authentication.
+
+**To enable restricted remote authentication, set the following setting:**
+
+- `remote_validate_file:` an absolute path to a script that expects input from stdin (user name, password (blank), and IP address; separated by "\n") and returns 0 if the user is authenticated and any other positive integer otherwise.
+
 ### Logout redirect
 
 The `logout_redirect` setting determines where the user will be redirected when they logout of MarkUs. It can be one of `DEFAULT`, `NONE`, or a URL.
diff --git a/Instructor-Guide--Assignments--Marking--Grading-View.md b/Instructor-Guide--Assignments--Marking--Grading-View.md
index fdd997b..1dcb02f 100644
--- a/Instructor-Guide--Assignments--Marking--Grading-View.md
+++ b/Instructor-Guide--Assignments--Marking--Grading-View.md
@@ -110,13 +110,17 @@ MarkUs also allows you to print a submission with the print button.
 This will print all PDF files that have been submitted as a single PDF file, along with a cover page which provides information about the students in a group,
 the mark received on each criterion, a list of all annotations on the submission, and any overall comment that has been left during grading.
 
+You can also bulk print from the submissions table.
+
+![Bulk Print Button](images/bulk_print.png)
+
 ![Printed Assignment Cover Page](images/printed-assignment-cover-page.png)
 
-In the output pdf, the location of each annotation will also be marked.
+For PDF files, the location of each annotation will be marked in the output.
 
 ![Printed Assignment Annotation](images/printed-assignment-annotation.png)
 
-> :spiral_notepad: **NOTE**: Only PDF files are supported for printing. If a submission contains files of other types, they will not be printed.
+> :spiral_notepad: **NOTE**: `.pdf` and `.ipynb` are the only file formats supported for printing. If a submission contains files of other types, they will not be printed.
 
 ## Annotations
 
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new file mode 100644
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diff --git a/images/print.png b/images/print.png
index d23ee7a..8b79eeb 100644
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