No it wont. I don't know where you're getting this from.
And what if you forget which bricks are blocked?
i just dislike things like the addon loading GUI because of their length, dificulty to find stuff on it, and they normaly take a while to load as well (maybe due to addon checking?)
and there could be a command to list the bricks being blocked
if this were put into a GUI form, i'd suggest modifying the default brick cart GUI to have different scroll down boxes on each brick/group