Hi Dave – Thanks for the clarification and you’re mostly right …
I’d like to correct your assumption and say “you might only want to offer to allow the choice of devices with Garage Door Capability”. If you have a SmartApp that’s, say, checking “Are any of my doors open?”, then any door would do. a SmartApp that’s call “Let Someone into the House” also would work with any automatic door (or, even a door with a motorized connected Lock).
I guess we are off Topic, but the idea is we’d really like for the Capability filter on the input() preference to allow boolean operators (and, or) … so that Capabilities could have varying degrees of granularity. Instead of a Garage Door Capability, your input statement could say “Capability Door OR Capability Garage Door”, or it could say “Capability Contact Sensor AND Capability Open/Close”. This would also allow a lighting SmartApp to not present overlapping lists of devices if you want nearly “everything” and could set the filter to “Capability Sensor OR Capability Actuator”.
For further discussion, please feel welcome respond over in the Capabilities Category where I discussed this concept many months ago…