You say you are trying to create an InstantMovie?
The option to rearrange the slides in a slideshow workspace is a feature of the Organizer's Create/Slideshow tool.
Thank you for the swift response. However this did not address my problem. I know how and have done many times used the slide show / instant video tool. My problem is arranging my assets once I am in the operation. I find moving assets in the timeline very impractical. Several years ago when using an earlier version I recall being able to bring up a grid system and it was easy to move assets about as required. This was what I am looking to do again. I cannot imagine that Adobe would remove a useful tool as this and more likely to have expanded it.!! As my eyesight and memory are not as good as before I need some guidance on how to do this. I seem to have pushed every button, opened up every drop down menu but it still eludes me.!!!!!. HELP is needed. A simple list of does / pointers would be very much appreciated. Thank you. D. Allenby.
As I said, this is exactly what you can do in the Organizer's Slideshow creator.
The slides are displayed in the workspace as thumbnails, and you can easily drag them into whatever order you'd like.