menu info change?

I was wonderinf how possible or hard or even useful this could be.

Ive recently started to level my crafting classes. And the ammount of mats required are pretty huge. I know the menu shows you how maby you have in your bag, but would it be possible for it to show yuy if you have any on a retainer?

Ive found myself buying things i already had bc i forgot i had them on a retainer. Idk. I think itd be kinda.useful to have that information when you check an item. To see both your inventory stock and your retainer stock, thoughts?

Right click (or Square/Y): "Search For Item"

Tells you which retainers and which grades.