Look on the TF support page and read "TimeFactor Version 2.0 Manual Addendum". There you will find the following (and other useful info).
System Menu Updates
[AUX SW] – Program Auxiliary Switches
"Alternate" Aux Switch Mode
In Alternate Mode, the AUX switches act as Play Switches when the Stompbox is in Bank Mode and Bank Switches when the Stompbox is in Play Mode. The altemate mode switch designators, "FS1", "FS2" and "FS3", have been added to the AUX SW Menu.
