I don't know if this would be out of the mod's scope or just too complicated, but it would be great if you could add an option to automatically request all item required by a certain crafting machine instead of having to select them one by one and inputting how many you want for each.
Example:
-> put down assembler for an item I want to craft just once
-> click button to create new request and select said assembler
-> it detects all items required for one craft (maybe open a dialog box to confirm selection, displaying items that will be requested?)
-> confirm and all items will be requested to the assembler

Is that something you'd want for just a single assembler, or like selecting multiple assemblers... In either case i'd probably put it into a separate mod if done.