Options
From: https://zoneminder.readthedocs.io/en/1.37.61/userguide/options.html



Options
The various options you can specify are displayed in a tabbed dialog with
each group of options displayed under a different heading. Each option is
displayed with its name, a short description and the current value. You
can also click on the ‘?’ link following each description to get a
fuller explanation about each option. This is the same as you would get
from zmconfig.pl. A number of option groups have a master option near the
top which enables or disables the whole group so you should be aware of
the state of this before modifying options and expecting them to make any
difference.

If you have changed the value of an option you should then ‘save’ it. A
number of the option groups will then prompt you to let you know that the
option(s) you have changed will require a system restart. This is not done
automatically in case you will be changing many values in the same
session, however once you have made all of your changes you should restart
ZoneMinder as soon as possible. The reason for this is that web and some
scripts will pick up the new changes immediately but some of the daemons
will still be using the old values and this can lead to data inconsistency
or loss.

Note
If you are looking for Options->Paths documentation, it was moved to a
configuration file starting ZoneMinder 1.32. See here.