I’ve added a custom action in Thunar to allow for easy removal of metadata from files simply by right clicking the file(s) and selecting “Clear metadata.”
To add to Thunar, select Edit -> Configure custom actions…
Then click the plus icon and add the following details:
Name: Clear metadata
Description: Clear Metadata from files
Command: mat2 %N
Icon: edit-clear-all (from action icons)
Then under the tab Appearance Conditions, Appears if selection contains:
Check everything except Directories.
This allows for simple and easy removal of metadata from one or more files from the file manager, and I think it would be nice to have this feature in Whonix by default.