You are right . . . that's the way to do it.
When the RTSystems application is opened, it looks like a spreadsheet where you enter frequencies, tone, etc.? Over on the right side of the spreadsheet are columns titled Bank 1, Bank 2, etc., etc.? If you want a freq to be on, say, Bank 3, check the Bank 3 box for that freq.
I have my FT-60 set up for:
Bank 1:? Local repeaters and simplex freqs
Bank 2:? All 144 repeater freqs
Bank 3:? All 432 repeater freqs
Bank 4:? Local public service freqs (sheriff, fire, rescue, Coast Guard, etc.)
Bank 5:? SaudiSat SO-51 split freq operation.
Bank 6:? Something, I forget.
Joe
W4HH