My version of google maps for b4j is 1.61
View attachment 55059 As you can see, there is RemoveMarke inside.
Well, I think I have 2 problems. When I try to overcome my problems I have different Browser windows open with different threads which belong to set and remove marker.
Also the documentation of jgooglemaps is open. My focus was upon all you find under Marker theme.
When I started the thread I had only the method marker.remove in my focus not googlemaps.removemarker. In Ver 1.28 is marker.remove available in Ver 1.61 not. In the library discription you can see marker.IsInitialized, marker.Position, marker.Remove, marker.Title, marker.Visible.
A lot of threads work with marker.remove. I didn´t talk about googlemap.removemarker. So I was confused about the first answer from DonManfred, because in the member discription of the library googlemap.Removemarker isn´t listed.