I know someone made a How To web page explaining this and other neat tricks, but I can't find the post with the url.

Suzan


Meanwhile I just copied this from an earlier post:

Crossfade a Group
I'm assuming you have the pictures side by side
1. Turn Ripple Edits off and Automatic Crossfade on
2. Switch to Selection tool (Edit-->Editing Tool-->Selection
3. Select all the pictures and create a New Group (right click -> Group> Create New)
4. Copy the Group (right click --> Copy)
5. Position the cursor where you want the transition between photo 1 and 2
6. Paste the Group. Finished.

This has the disadvantage of adding transitions you don't want (overlap of different pictures and also the same). It's fairly easy to figure out what ones you care about. For 4 pictures you get 7 transitions. (Confession: I had to write 1 2 3 4 on a piece of paper and below it write 1 2 3 4 shifted over in order to see where the transitions were coming from).

If you want fancy transitions (Iris: 36 diamonds set 4x9 with a yellow border slightly feathered) I think you'll need to go through and add them manually to every other transition.