Intellicenter - How to set "low spa"? Intellicenter seems to only allow one speed for Spa mode.

For those of you that are familiar with the Pentair Intellicenter shared models (e.g. i5PS), is there a way for me to tell the pool to go into Spa mode but not use whatever default speed setting is set for "Spa" mode? I've tried every which way to override the "Spa" circuit with an additional "Spa Low" feature circuit, but it only seems to care what "Spa" is set to if I add it to the group (but how else can I tell it to go into Spa mode?). I can do this for pool mode (i.e. have a low speed...

Intellicenter - How to set "low spa"? Intellicenter seems to only allow one speed for Spa mode.