Hi,
 
> Nick. Regarding the messages: Zaher showed me that it is possible to simply place
> a custom log file generated by the systemd next to midas.log - then it shows up
> next to the "midas" tab in "Messages".

Interesting. I'm not familiar with that feature. Do you have link to documentation?

> One follow-up question: Is it possible to use the systemctl status for the
> "Running on host" column? Or does this even happen automatically?

On the programs page that column is populated by the odb key /System/Clients/<PID>/Host
so no. However, there is nothing stopping you from writing your own version of
programs.html to show whatever you want. For example I have a custom programs
page the includes columns to enable/disable and to reset watchdog alarms.

Cheers,

Nick.