Hi,
I know it's not very clear.
But from the midi doc (
https://ixox.fr/preenfm2/preenfm/midi/) :
Program change
Bank select (CC#0) and Bank Select LSB (#32)
Preenfm bank : CC#0 = 0 then CC#32 = Preenfm bank number
Combo bank : CC#0 = 1 then CC#32 = Combo number
DC7 bank : CC#0 = 2 then CC#32 = DX7 bank from 0 to 127
DC7 bank : CC#0 = 3 then CC#32 = DX7 bank from 128 to 55
So to access Bank2, program 26 you should send :
CC#0 = 0 (optional because that's the default)
CC#32 = 1 (for Bank 2, it's 0 based)
Then program change will select the preset in Bank2.