Filter Sheets by Addendum While Keeping Folder Grouping

I organize my project pages using Group By → Folder, with discipline folders such as General, Civil, Structural, and Architectural. I want to keep that structure while filtering the visible sheets to a specific addendum or plan set.

In my current workflow, I can view only Addendum 2 sheets, or I can use my folder grouping, but I cannot combine the two.

Please make the addendum/plan-set filter independent of the Group By setting. For example:

• Group By: Folder

• Filter: Addendum 2

• Result: Keep the discipline-folder groups, but show only Addendum 2 sheets within each folder.

Clearing the filter should restore the full folder view without changing any folder assignments.

This would let me review an addendum by discipline using the organization I already set up, without having to choose between seeing the relevant sheets and keeping my folder grouping.