Thanks for the replies but unfortunately I am still at a loss.
Here’s how I think it works
X10 remote –> (X10 Signal) –> EZX10RF
EZX10RF (internal DB says x10-123 should go to insteon-XYZ) –> insteon network (insteon-XYZ ON)
insteon XYZ (lamp) turns on
With that I was hoping I could simply change the insteon network id above with some sort of tool/sw?