How to manually add online unites to project if not auto-detected?

Hi folks, new AHM-16 user here and loving it so far.

I am able to manually connect to a newly purchased unit via AHM System Manager (1.61, macOS) via the unit’s IP address. SM is unable to detect units, though.

Now, when I create a project instead of directly connecting to the unit from the main screen, and after manually adding the AHM-16, I can only “CONNECT SIM”.

I am unable to find the user interface part, where I “link” the real-world online unit to the virtual one added on project level. Also, while I can set name, color etc. for the unit added to the project, I can’t configure the IP address to connect to.

Can anybody point me into the right direction? How do I “link” the projects virtual unit to the real physical unit?