What about improving the layer filter by adding a ‘search’ field directly on the layer panel:
The user can type whatever he wants in it and on each keystroke:
the panel gets updated and only shows the layers that have a matching sub-string in their names
matching string portion gets highlighted on the layer name
the filter can quickly be disabled/reset by pressing ‘Esc’ or hitting some quit icon in that bar
I know that is already doable with the layer filter, but it would be handy to have that sort of feature directly embedded on the panel for quicker use.
I think it could also be cool if you can have a button to automatically add the search as a saved filter. I wouldn’t imagine it would take that much more work to do so.
If you are running the WIP, you will notice a “search” field starting to appears on some panels. The new Layouts panel and the Layer Sates panel come to mind.