Idea:
Being able to pin/star decks and place them at the top under the “Starred/Pinned” heading.
You can set them by tapping next to or in the options list of the icon.
Utility:
There are times when you have to focus hard on just a few decks, so it’s great to have them accessible and not hidden within various levels of subdecks.
Tip:
Ideally, the “Pinned/Starred” header can also be collapsed and that way it doesn’t permanently move the rest of the decks down.
You should be able to pin just the deck (Pin this deck only) or the deck with all its subdecks (Pin with subdecks).
Also, you should be able to pin normal and filtered decks.
The idea of pinning is based on the fact that there are deck that are at very deep sublevels of organization, and in that case the display order would not work.
However, manually sorting by dragging them is something that should definitely be implemented.