I have compiled GExperts 1.3.14 build 80 (r2809) in Delphi 10.3.1 :
Searched for identifier "newshortcut" in Uses Clause Manager:
As you can see in the above screenshot, nothing was found.
Then I searched in RFindUnit 1.2.0 and found several identifiers:
So why GExperts couldn't find these identifiers?
Please have a look at RFindUnit at GitHub - it has a lot of useful features:
https://github.com/rfrezino/RFindUnit
Unfortunately, the author has abandoned the project.
Please ask him whether you can use the source code in the GExperts Uses Clause Manager.