It would be fine if it were possible to exchange data between the editors for transitions and O&A.
Example 1: I have a slide with 2 main images, and I would like to copy the objects of this slide from the O&A Editor into the Transition Editor, and there I would like to replace the 2 main images by "Slide1" and "Slide2".
Example 2: I have a custom transition, and I would like to copy the objects of this transition from the Transition Editor into the O&A Editor of some slide,