By creating a way to collapse the category table on the main ticket table (the main page of JitBit in which the listing of tickets is shown) would help with screen real estate. This is especially important, if, like me, you keep the listing of tickets on a monitor in portrait mode. When in portrait mode, the category table takes up at least 1/4 of the screen, which is wasted. If I need to filter by category, I could always expand, filter, then shrink the table.
I am aware that if the window is sized small enough, the category table shifts to the bottom of the ticket table. I guess my monitors are just large enough to miss this cutoff and it stays on the left.