Intuitively, the focus should shift to the arts window once the Begin button is pressed. Focus does not shift to the arts window in the new crafting window until at least one art is pressed with the mouse. Not a huge issue perhaps but certainly non-intuitive and one more mouse button push in a steady grind of mouse button pushes dealing with crafting (not Profit's fault there
).
I like the expanded crafting window but the first time I saw it was after the last patch push and it took me all of, oh, 5 to 10 seconds to figure out what was happening. It's more of an irritant than noobishness and I was considering just deleting the craft window from the folder and just use the default. Now I'll see if I can actually get the old one back instead and hope you fix the focus at some point on the new one.
I love ProfitUI and use it exclusively.