Syvecs on a rotary engine - how do you define the Secondary Ignition Timing Map?

Does anyone know where you define the split timing map in SCal?

Under Run-Mode Ignition there is the option "Secondary Ignition Timing Maps Are Relative" but nowhere that hints at being the Secondary Timing map.

Probably best to ask them directly, but my recollection is >cal switches>Base Sec Ign map select. If you set that to say 4 for all cal slots, and enable sec ign maps are relative, the Base Ign Angle 4 table will then be your trailing split.