Is it possible to change transitions duration time and add Thought & Speech Bubbles like in my previous version of Photoshop Elements 7.
These features added fun to a slideshow and are NOT present in Photoshop Elements 2020.
The old slideshow module has been replaced by a new one several years ago. The new solution is automated through artificial intelligence and you can't customize anything otherwise than by choosing different themes. The other main idea of the new version is that today everybody wants the support of high resolution and a universal sharing way, which is by exporting mp4 videos. If you want to customize a slideshow, you'll have to use Premiere Elements.
Note that the quick slideshow on your computer via the F11 full screen mode has an option to set frame duration.
Thanks for your reply.