Not sure what you mean but you can create a sweep with the clip property in the left panel. Select your image and make a transition with the clip property in a symbol and then play the symbol as desired.
You could also do it with css and animate() if you can use jquery.
Well, that was the first way i've tried to do it but i couldn't create a soft edge to the wipe...
eventually i created a Gif in Photoshop and imported it to Edge Animate.
Thanks for the replay!