Scenario: Arm or disarm a specific sync module as an action in Hubitat.
Virtual Switch to Tell Blink to Arm/Disarm Armed When Away Cameras is a virtual contact sensor with switch in Hubitat. A virtual switch by itself cannot be used to trigger Alexa routines. This device is surfaced to Alexa via the Amazon Echo Skill.
In Alexa (with the Blink skill linked), I created this routine, and a similar routine to disarm with contact sensor closes. The action in the Alexa routine is a Custom action for Alexa to respond as if I said to Echo Flex in Garage "Arm Sync Armed when Away with PIN zero zero zero zero." When you create this custom action, it will present a dialog box asking if you are sure you want to include the PIN, then confirm.
The result is a virtual switch in HE that I can turn on and off to arm or disarm this sync module. For the moment I have a device designated as the responding device being one where I won't normally hear it.
