Use a Listbox (LB) object as a selector
Due to a native QlikView bug, a QlikMaps object making direct selections does not properly handle Forward and Backward commands. A workaround offered in QlikMaps 2.2.2+ uses Listboxes to make selections, which enables Forward and Backward to work properly.
The behind-the-scenes differences in Points/Polygon objects versus Multilayer objects requires a slightly different method of setting up the Listbox selector.
For a Multilayer object, use each source object expression to set up the Listbox selector. After adding the Chart ID of the source object, add the delimiter "_" and the Chart ID of the Listbox.
NOTE: Selecting via listbox in a Multilayer object does not work in the Desktop client; it will only work in the AccessPoint client.
QlikMaps will now use the related Listbox to make selections, instead of making direct selections.