No – as far as I know you cannot change banks with the program change messages. I'm sure one of the moderators will correct me if I'm wrong here.
According to the Timefactor manual (page 35) it looks like you need to be transmitting a Continuous Control message to change banks via Midi, or input tap tempo. The Gig Rig sends only Program Change messages.
If you were using a midi controller that sent Continuous Control messages, you could set it up to control these functions.
