"Whenever you set transitions, you'll find them in the tasks
pane on the right side of the editing window. Impress gives you a
choice of 56 transitions, although many are just variations of each
other -- for instance, Wipe Up or Wipe Down -- and, irritatingly
enough, the tasks pane doesn't list them in alphabetical order for
"Like many formatting features, transitions are easy to overdo.
Just as you should usually limit your fonts to two -- one for
headers and one for body text -- so you should usually limit your
transitions to two -- one to announce a new section of your
presentation, and one for ordinary transitions. And even those two
might be more effective if you chose variations of the same
transition. Geeking out and using more transitions is only going to
make your presentation look cluttered and disorganized."