Thanks.

Of course. All folder settings are controlled at File > Add/rescan files

I dug around in the forum as much as patience allowed,
apologies in advance if I missed the answer.

I use BitTorrent Sync across three machines to back up & synchronize my library.
BTS creates a .sync folder inside the target directory (Music, Music Extra),
for temp files, archives, et cetera.

MediaMonkey finds and adds the contents of this folder at startup (not continuous),
which results in duplicates and probably slows down both MM and BTS.

The path is F:\Music\.sync
Can this folder be excluded from MM?

-G