Here is a link to another thread that you may find beneficial where Andrew from PG Music demonstrates a tutorial using the silence feature and also explains it being a better option regarding it does a natural, smooth solo ending rather than the abrupt cut off endings sometimes produced with using the F5 Mute.
BIAB Ultra Pak+ 2023:RB 2023, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.