My only real comment on this is that given how beast tribe currency works I don't think they can go in the currency tab - not as it currently works. There is however no reason it couldn't be changed to work more like tomestones.

If they do not change it there is no reason why it shouldn't be in key items. I have never once even come close to filling this tab. Atma, luminous crystals, light glass, etc should be in key items as well.

They don't really need to increase raw invent room that much if they got smarter about how things were stored. Why no gear tab for baits (or a tacklebox)? Why aren't more items in the key items tab? Straight up increasing invent slots really isn't going to help in the long term so long as the billion currencies and specific quest items we have are taking up bag space rather than being in key items or currency listing.