As a teacher I often have a lot of open documents, that are currently needed for the different classes I teach. When opening more than 4 or 5 files it gets difficult to distinguish between them without having to go back into folders.

The following features would help here:
- a dropdown menu to choose the file I need
- the ability to group document tabs
- colored document tabs similar to the new folder colors
- a visual overview option to see small versions of all open documents, similar to the overview of open GoodNotes instances for split view etc.