Sorry for the really long delay in reply, essentially its complicated and will vary depending on the baseline the firmware you have is based on so it is probably going to be easier to just ask the unit what it supports with the below commands.
at!entercnd=“A710”
at!rfcombos?
You will see that the current 3.9.6.0 firmware supports 3.5k combos so does not lend itself well to documentation.
Regards
Matt