default void setActiveActionSet( String activeActionSet ){
        throw new UnsupportedOperationException("Action manifests are not supported for the currently used VR API");
    }
Updates the active action set (the action group that will have their states available to be polled).

Note that this update will not take effect until the next loop
Note that at present only a single set at a time is supported

@param activeActionSet
         the actions in the manifest are divided into action sets (groups) by their prefix (e.g. "/actions/main").
         These action sets can be turned off and on per frame. This argument sets the action set that will be
         active now.
jme3-vr/src/main/java/com/jme3/input/vr/VRInputAPI.java