Available Columns in Edit Catalogue Extraction

[zzszarka]

Is your feature request related to a problem? Please describe.
When editing the catalogue extraction, I want to look at all available catalogue columns with the different extractibility classes.
The order of the available columns list:

1. Core
2. Project Specific Catalogue a
3. Project Specific Catalogue b
4. ...
5. ...
6. Project Specific Catalogue x
7. Special Approval
8. Supplemental
9. Internal

The core items are usually at the top, which is ideal, but the other extractibility are at the bottom of a long list of Project specific catalogues, and as the default view is expanded, it takes time to scroll to the bottom of the list.
Also it is unlikely to add a column from a project specific catalogue at this stage.

Describe the solution you'd like
Ideally: Show only columns from the currently edited catalogue.
If RDMP must show project specific columns, list them at the bottom, collapsed by default.

Describe alternatives you've considered
add a tick list, to select catalogues for which to display available columns.

Additional context

suggested:

[tznind]

If you want to see Supplemental items you can type 'Supplemental' into the Search box.

[zzszarka]

Thank you for the suggestion, but it does not make the task easier, because it means typing instead of scrolling, and if I want to check core again, I would have to type "Core" again.
Is there any problem with my suggestion above?

[tznind]

I have added a tickbox that disapears them when you untick it. Value is persisted in UserSettings so if you restart/reopen UI it's state should be preserved

[zzszarka]

Thank you. What is the default setting?

[tznind]

Thank you. What is the default setting?

true (show Project Specific Columns).