Ack, okies then it sounds like a gray area type thing. Perhaps I'll leave it be.
Ideally what I was going for is, remapping my Open / Close Inventory Window button to something I'd hit once when I log in, say letter Y.
Then I minimize my Inventory window so that (mod'd of course) 2 of my 6 Inventory slots are showing only. This allows me to hotswap Activatable items (such as Heal Potions, Horse whistle, Curing Potions, Totems, etc.) quickly without looking into my bags for them.
The trouble is, I keep hitting the I key to maximize the window, where instead I was simply Opening / Closing the whole Inventory Window.
I'll stick to using the OnPress buttons I added to min / max it. Don't want to get into any kind of EULA trouble
Thanks everyone for your time!