when many tabs are opened, it becomes harder to maintain a good overview. I suggest the option of putting tabs of documents together in a group or stack, so that I can now work on other documents, but still can reopen the other tabs fast without having to close them before.
For example: I‘m working on my physics homework and my answer and exercise sheets are opened. But also, I do have to take a look from time to time into the maths and physics theory notes, but not often, and still, they are using up a lot of tab space. So the solution is, that I can stack all the theory sheets together in a group ready for anytime, but I‘m focussing on my exercise and answer sheets.

This is a feature request for some way of grouping and then loading documents as a set of tabs.

I have a bunch of PDFs, which I use for a number of different projects. If I'm working on a piece of software, it's valuable to have various manuals open (with or without notes). If I'm prepping for a week's worth of teaching, it's nice to have all of that week's materials laid out in tabs: slides, lecture notes, the readings for the week, etc. In most cases, I end up also loading up a GoodNotes notebook for sketches, notes, etc.

The use case I'd like to have is the ability to save tab sets (or tab collections, or tab groups, or whatever name doesn't collide with what's already got in the UI). At simplest, I'd want to do three things:

- save a set of tabs with a label
- load a set of tabs with a label
- inspect saved tab sets

For *saving a set of tabs with a label* I'd like to be able to save the _current_ tab set (preserving tab ordering for the tabs, and doc position for the documents so I can pick up where I left off) with a label. I expect I wouldn't need to store sets of more than, say, ten tabs (anything more and I believe I'd no longer be able to deal with the complexity). I expect I could easily handle editing tab sets by manipulating tabs in the UI and re-saving to a label.

For *loading sets of tabs with a label*, I'd like a list of labels. Selecting a label would load in the label's tabs. As this would be a focusing tool, I'd want the option to have the loading action clear all the other tabs (and maybe put them in a preset label so I could get them back if I hadn't meant to do that).

For *inspect saved tab sets*, I'd like to be able to see what document tabs are included with each label, and what state they're in (maybe just a thumbnail?). This could be read-only (editing might be nice, but I mostly want to be able to remind myself of what's going on in a tab set).

This would be useful to me as I move from project to project: move to a different project, and all the documents I need are available, and easy to pick up again. I'd guess that this would also make GoodNotes an enormously useful tool for students, moving from class to class, or project managers, moving from meeting to meeting.

save tabs in groups for later use and close all tabs

Imagine you are taking different classes and have multiple tabs open for each class. It would be better if we are able to navigate to the tabs for a specific subject.