Suite: Improvements on repositories for custom-code support. #15594
Description
Resolves #15530
Also, see my comment: #15530#issuecomment-1788552088
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I documented it (or no need to document or I will create a separate documentation issue)
- I worked with the design team to get their idea for UI/UX design (or no need to design for this PR)
- I've assigned reviewer, related labels and set a milestone for this PR