Installing Zoneminder on Scale

I upgraded from CORE to SCALE only to find out that I cannot install Zoneminder as an App.

How can I create a custom app with Zoneminder?
I tried, not sure what to fill in to all the fields when creating a custom app. Is there a tutorial for this?

I downloaded a container image, but what is next?
(not sure what to add to entry point, storage, etc)

Thanks a lot!