How to draw a static circle on the ground?

[wovon]

I want to create a mod, with which you can set a marker to remember a specific point.

Is ist possible to place a problem notification, like the missing electricity notification, anywhere in the map and also replace the electricity icon with my own?

If not, is it possible to draw a static round circle anywhere in the map?
I tried it with OverlayEffects.DrawCircle, but this wasnt static.