Hi. I added new parameter to configure load placemarks process By default all placemarks will be loaded Two step loading - firstly loaded placemarks in map bounds, after that will be loaded the others placemarks The third type - load placemarks by map bounds. The third type I think useful when you restrict map zooms or map bounds. It is because it will be constantly request to show new placemarks. And it will take time if placemarks will be a lot (for example, on less zoom). The first and second types quite works, and very good with using buffering (for example, enter Buffer Size for placemarks to 100 or 200).