TL;DR
It should show all stuff required for crafting a selected item with all intermediate stages.What ?
1. I want to see how much of what at which stage I need to produce for a selected item - all in one screen.
2. A player should be able to navigate there from the crafting/inventory (E) - from selecting any item right from crafting menu.
3. It should be possible to open and keep it on screen for a long time.
4. You can also show there how much of those required a player already have.
Why ?
Now to plan assemblers I have to look at each of item and then manually find each of their components in crafting menu multiple times. It's very hard when I can't remember where to look and the search is not usable (it's case sensitive in russian).It should help new players a lot so they don't get frustrated with UX.