Here is another topic which shows exactly what I am talking about wrt to garage doors and routines.
The workaround is to add the “Switch” capability to the Child Door Control device handler, along with the corresponding “on()” and “off()” commands (just have on() call “open()” and “off()” call “close()”).
You still will not be able to select these devices in a Routine as a Garage Door… you’ll have to the treat them as a switch.
I’d rather not make this the default behavior in ST_Anything as I fear it is far more likely that people will accidentally activate their garage doors and result in a home security risk. I do not know why ST has apparently intentionally neutered the custom Garage Door Control capability from working with Routines.