JabRef 5.2--2020-12-24--6a2a512
Windows 10 10.0 amd64
Java 14.0.2

• Mandatory: I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

This issue is present on the v5.2 stable.

Steps to reproduce the behavior:

1. Open Edit > Read Status > ...
2. Open Options > Customize key binding > Edit
3. One cannot edit the key bindings present in the menu

It would be great if all the menu options could be bound to a keystroke combination