Is your feature request related to a problem? Please describe.
Sometimes when building big projects I like to collect all the ressources first and store them in many chests. The material list therefore isn't really able to keep track of me having all the ressources, so it always shows that I'm still missing something.

Another problem is that a schematic might have something like stone for a "generic building block" whereas I'm using cobblestone for it. This also won't get tracked by the material list.

Describe the solution you'd like
It would be nice if we could manually check off materials with a simple checkbox (with a persistent state) to the side of each ressource in the material list. I think it would help with keeping track of things you still need to consider.