I've spent quite a lot of time rearranging all my items across my character, calamity salvager, and 2 retainers.
I think it would be useful if we could re-name the inventory tabs rather than just being 1-4 for the player or 1-7 for retainers.
That would make it easier to see at a glance where my materials are for different crafts (trying to use 1 tab per craft) and specific tabs for other things (eg a material tab, a special item tab, token tab etc)