Is not easy to switch between icons.
Yous should mby change the design of icon layout in inventory
Mby circular layout would be better for, but lot of items...

Mby insert pointer for xbox one players, like on mouse setting.
Need awailability on every item to click it and chose what you want to doo with it. Like a small drop down bar, where u can chose, combine or create item

Double click on a then could place it in hand.
Menu should be available manage faster