"If any of these purposes sound useful to you, then you should
take the time to investigate the two means of animation in Impress:
The Animation dialog window opened from the Insert menu, and the
Custom Animation Pane. Both work on any sort of visual object,
including imported pictures, shape primitives, or graphic text,
although obviously some objects are more suitable for certain types
of animation than others.
"Despite its name, the pane is for those who prefer
OpenOffice.org to do most of the work. By contrast, the Animation
dialog is for those who prefer to build their own animation. The
two systems cannot both be applied to the same object, although you
can use both on the same slide with different objects."