In FMI Compliance Checker, the separation of "Error logs" (-e) from Simulation Results (-o) was very handy. Also the possibility to select the "verbosity" of logging (I believe logging of errors) via (-l) was super useful.

It seems the warning/error logging is now also being added to fmusim #559 which I am very happy about.
Could you please also add an equivalent of the -l option for setting the "verbosity"?