Other shortcut keys for Impress

Shortcut Keys	Effect
Arrow key	Move the selected object or the page view in the direction of the arrow.
Ctrl+Arrow key	Move around in the page view.
Shift+drag	Constrains the movement of the selected object horizontally or vertically.
Ctrl+drag (with Copy when moving option active)	Hold down Ctrl and drag an object to create a copy of the object.
Alt key	Hold down Alt to draw or resize objects by dragging from the centre of the object outward.
Alt+click	Select the object behind the currently selected object.
Alt+Shift+click	Select the object in front of the currently selected object.
Shift+click	Select adjacent items or a text passage. Click at the start of a selection, move to the end of the selection, and then hold down Shift while you click.
Shift+drag (when resizing)	Hold down Shift while dragging to resize an object to maintain the proportions of the object.
Tab	Select objects in the order in which they were created.
Shift+Tab	Select objects in the reverse order in which they were created.
Escape	Exit current mode.
Enter	Activate a place-holder object in a new presentation (only if the frame is selected)
Ctrl+Enter	Moves to the next text object on the slide. If there are no text objects on the slide, or if you reached the last text object, a new slide is inserted after the current slide. The new slide uses the same layout as the current slide.