I'm quite new to GIS technology so pardon me if I make any mistakes or use the wrong terms here.
So, I got a map, with point layer A, B, C.
A is the main point layer. I would like to make something like this but got no idea how I'm gonna do this.
When I start an edit session, click on a point in layer A, delete it, all surrounding object within a radius of r meters in layer B and C would be deleted as well.