Hey!
Can you add some kind of API for developers in your plugin so everyone can add all of it to the map?
Also, there are other markers like with radius and color. You can add them too to your plugin.

As the plugin is now, it's doing exactly what I envisioned it to do. Adding other markers or an API requires knowledge I do not currently have, so for now it will stay simple, unless someone wishes to adopt the plugin.

Added