[OBSOLETE]Intermatic PE653 Pool Control System

Probably no, as it’s not in the user manual. However it’s probably possible with a software update (from an hardware point of view), if not. You should try contacting Intermartic directly.

Have you considered using normal Z-wave light switch for some of the relays? I never tried, but you can add z-wave components to scene controlled by the pe653.
If you don’t need separate control, you can also use the add-on relay to connect multiple devices to the same control.

BTW, is there even a device handler for the Aqualink? I think you’ll need the use their proprietary app.