Not sure how console players would handle it, but on PC there’s already a good example with smokes, pressing "5" multiple times cycles through different smoke colours if you have them. I think this should be expanded across all item groups:
"0" could cycle shovel → wrench → TNT detonator, etc.
"6" could cycle bandages → tourniquet.
"7 could cycle saline → morphine.
That way, modders like ACE could easily add their items into the right group. For example, all injectables could sit under "7", and you just cycle through them. you could make it even better and also add "hold the number key needed + scroll wheel" to cycle faster. I know modders can add this, but I think it should be base game.
Also, A GM favourites list (top 10 quick select) to instantly access the items you use all the time during OPs or when building yeah I have asked this before.