Kitematic using static ip for container

Hello everyone,

I am using a Mac Mini as a Server. Installed Docker Desktop and Kitematic on it.

Once I create a container e.g. PiHole, I can not assign a static ip address.

See screenshot:

Published IP is set fix to localhost - how can I change the IP address of my container?

Usually I did this in the container (On Synology and QNAP NAS), but on the Mac somehow it is not possible.

Even when I try to access, to Pi-Hole through localhost, it is not connecting…