public int addNewMonitor(long displaysID) {
        DisplayInfo info = new DisplayInfo();
        info.setDisplay(displaysID);
        displays.add(info);
        return displays.size() - 1;
    }
Add a new monitor to the list

@param displaysID the (native) pointer of the new monitor
@return the position of the monitor (represents the index)
jme3-core/src/main/java/com/jme3/system/Displays.java