code: private void searchAtLocation(Coordinate location, boolean isShift) {
  		Geometry point = new Geometry(Geometry.POINT, 0, -1);
  		point.setCoordinates(new Coordinate[] { location });
  
  		GeomajasServerExtension
  				.getInstance()
  				.getServerFeatureService()
  				.search(mapPresenter, point, pixelsToUnits(pixelTolerance), QueryType.INTERSECTS, searchLayerType, -1,
  						new SelectionCallback(isShift, false));
  	}
docs: Search for features at a certain location.
  
  @param location
  The location to check.
  @param isShift
  Is the shift button pressed down?