Hello there!

I have a project template with several photos that are already set to be shown 7 seconds of lenght each one. For this project I already applied animations and transitions. They are about 400 fotos. I need to change their lenghts.
Is it possible to change the image's lenghts all at once without interfere on the applied animations and transitions?
How to do it?

Thanks ihn advance.

Marcelo.