Yep… I have found this since day one, but asked myself what is it for?? “Easter egg”??
All LED turn off, and its clearer to see data traffic either from USB or DIN.
(maybe unswearing myself, could this be a temporary location to experiment/test without using one of the Preset slots (that could already be used) and later save to a file.
Ohhh, just in case; don’t take it away… I like it