Access Grafana Add-On directly? Without HASSIO Frontend?

Hi,
I’m a fan of Grafana, and love to work with this. I use it as an Add-On on my RPi4 Home Assistant machine. Only thing from time to time that annoys me is that I’m workin in Grafana and Home Assistant is reloading the whole page, for some reason. All Grafana settings I’ve done are lost.

I wonder if I could make Grafana accessible directly, bypassing the Home Assistant GUI. I have understood that Add-Ons are running as Docker instances, but I have no clue how to configure them.

Any hint is appreciated.