This app will help you to unlink all components in your design in one go. Now, you don't need to unlink all components in your design manually, one by one.
Now this is a time saver for me, well worth the 0.89€ :)
I did manage to get a warning on a 400 part assembly in which the position of some parts got scrambled up (however I think this position scrambling is something of a "local" bug of mine - after I re-did the unlinking, the warning was still there, but everything went fine)
I'll send you a screenshot of the warning and see what happens with a larger linked assembly