I'm not good with Photoshop otherwise I'd love to make some mock-up of how that would ideally work in BG3, even keeping a lot of the same aesthetic but rearranging entirely how the sub-menu (that fundamentally are already there as "tabs") would present themselves more fluidly.
Paint is already be a good tool for mock-up !
Select / ctrl+C / ctrl+V is the best ! Mock-up doesn't have to be perfect.
I'd love to see what you have in mind.
