It is possible using virtual devices.
Create a virual device of a type that triggers the zone activity.
You can set the virtual devices via a flow, triggering the zone activity
I integrated the door sensors of my alarm system into the zone activity rhis way.
The sensors itself are not in homey but the alarm does interface to homey.
When I get a status change from the alarm, I trigger a virtual sensor that triggers the zone activity.
After 30sec a flow deactivates the virtual sensor again
Hope that works for you too
