Yes, I am. The software interface has a place labeled "mode switch" but the documentation is written generically.
When I first tried to figure it out, I programmed T1 to send shift-a with the mode switch on "A". Then I switched the mode switch to "B" and programmed T1 to send shift-b.
When I tested it, after saving the profile and loading it, selected mode "A" and pressed the T1 switch. It should have generated a capital A in notepad but it printed a B. Switching the mode to B, T1 generated a B again. it appears that the mode switch was ignored and I simply had re-programmed the T1 switch.
An email to customer support at Saitek has gone unanswered and the Saitek site has nothing in the forums.