My radio doesn't have an ABCD row so I added a macro to emulate *A5 or whatever letter you need. under the MACROS area you can say 1 = *A5 so when you press *51 it emulates *A5. I also have some B commands for halt and reboot. The commands are a little different if you use a WYSE 3040 instead of a PI, I definitely prefer the PI version of ASL3.