Zooz ZEN73, three way manual switch - trigger shelly 1

Hello,

I’m looking for some guidance. My goal is to have a ZEN73 trigger a shelly 1 to turn on/off a lamp when the manual switch in this three-way configuration is turned on/off.

I replaced a three-way switch at the bottom of my stairwell with a ZEN73 where lines is. The light load is at the top of the stairs, manual switch.

I’m looking at how to trigger the shelly when the manual switch is turned on.

Maybe an entity in the Zen73?

Thanks in advance for any ideas.