Expand Folder Functionality In Stash To Allow Collapse/Expand

This would be a nice upgrade for both PoE 1 and 2.

Currently we have some nice functionality in our stash to allow us to create folders to group tabs together. To the right of my stash I have a dropdown with all of my stash tabs. When I move a stash tab inside of a folder I can only see the folder in the dropdown list. There is no similar dropdown list inside the folder, so if I have several tabs inside it takes a lot of scrolling to get to the tab that I want.

It would be nice if the dropdown list on the right side of the stash tab displayed folders with a + icon next to them. Clicking the + would then expand the folder in the list and show all of the tabs inside (and also change the + to a - to collapse the folder again when not needed).

I'd also be willing to pay for some premium folders that allowed colors to be assigned if this expand/collapse functionality existed.