+ void groupSelectedItems(bool force = false);
+ /** Get available space for clip move (min and max free positions) */
+ void getClipAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum);
+ /** Get available space for transition move (min and max free positions) */
+ void getTransitionAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum);
+