wanted: command line parameter for hdr mode "--hdr" and "--no-hdr"

[comsyspro]

Is your feature request related to a problem? Please describe.
actually there is no command line parameter to enable hdr mode.

Describe the solution you'd like
want to have a parameter like "--hdr" and "--no-hdr" (default).
if this parameter is set it should be ignored if hdr mode isn't available.

Additional context
with that you can also set hdr with commandline or set it in scripts without a gui.