Nexx Home garage controller - want to automate notifications

I’m trying to find a way to automate the Nexx garage controller (send notifications if garage open more than xx min.) etc.

the device shows up in smartthings and I can open/close using the device, but I cant figure out how to automate it. The device’s type is “placeholder” so it isn’t showing up as an option in most of the stock smartapps I’ve found.

Anyone successfully done this?