Speaker Companion app no lock option

Since my BigTalker Sono Mod stopped working and I moved to the new app I have been looking for a way to play notifications. I have a basic WebCore piston to lock the front door when the door is closed after 2 minutes but see no option to use my Sonos to play announcement. For example when the front door is closed and lock is lock announce front door is locked. The Speaker Companion app seems to be the route, but there is not a lock option on the menu.
What are my options?