Bring Forward
Moves the selected object up one level, so that it is closer to top of the stacking order.
Choose Format - Arrange - Bring Forward (Collabora Office Writer, Collabora Office Calc).
Choose Shape - Arrange - Bring Forward (Collabora Office Draw).
CommandCtrl+plus sign (Collabora Office Impress, Collabora Office Draw)
Open context menu - choose Arrange - Bring Forward (Collabora Office Impress).
Bring Forward