TLcdGXYSelectController2 shows a pop-up when a user clicks on a location on the map while keeping the Alt key pressed.
This pop-up allows the user to indicate which object or objects must be selected. This is very convenient if there are overlapping objects on the map.
The selection functionality is provided by the
applySelection method implementation in
installed on the
See the class Javadoc of those classes for an overview of customization options.