Changes to Nixie Shared Body

[spifftek70]

I have a pool and spa that share an UltraTemp heater through two valves. However, they each have their own filters. The pool is a DE filter and the spa is a cartridge filter. I'd like one of the following to happen:

1. Give Shared Body the capability to add a second filter
2. Give Duel body the delay when pump is activated capability. It's there, but doesn't work.
3. Provide a checkbox form with elements that the bodies share for customization.

[spifftek70]

Honestly, it would seem to be an easy enough fix... point me in the right direction and I can try