F0 43 1n 7F 00 0A 00 01 0m F7

n=Device Number (in Utilitymenu —> Midi you can give each device a number 1-16)
Please remember Device Number 1 = 0 in HEX
m=Mode Change (0=Voice, 1=Performance, ...)

Here are working examples. 

Switch to Perform/User2/H/2
F0 43 10 7F 00 0A 00 01 01 F7
B0 00 3F
B0 00 41
C0 71

Switch to Voice/User1/A/1
F0 43 10 7F 00 0A 00 01 00 F7
B0 00 3F
B0 00 08
C0 00