Connecting NAS media to WDMyCloud / HACore/Rasp

Hi,
it seems quite complicated to add a media path for mp3 music to the Home Assistant media.
It seems not to be just adding

homeassistant:
  media_dirs:
    media: \\192.168.1.57\Public\Shared Music

to the configuration.yaml.
When I approach


it seems, that in

I have to change settings, which show following info:

NOTE: You will not be able to edit anything in Configuration -> General in the UI if you are using YAML configuration for any of the following: name, latitude, longitude, elevation, unit_system, temperature_unit, time_zone, external_url, internal_url.

Can the media folder in WDMycloudNAS be added by keeping the edit via UI option?
Or do I misunderstood the warning?

What is your way on a Hass.io/HACore installation to add NAS media path?

Regards
Jörg