I am looking for a feature I haven't found yet, maybe it doesn't exist, maybe I just overlooked it. My aim is to catalogue all my loose LEGO parts in one single part list. For creating MOCs I want to use custom lists including the needed parts. So far, so good. Now I want my lists to do virtually what I would do in real life: Separate the parts I already have right from my collection so that I cannot use them for other builds anymore.
I'm afraid that this is currently not possible but hope dies last.
Thank you in anticipation and greetings,