When using the Legacy Editor with the Powerpoint macro (viewppt), it is possible to click on the preview to open a window with the powerpoint. Then, you can scroll up/down, download or hit the slide show, to see the presentation.

However, when using the Fabric Editor, when we hit the preview, we only have the option to scroll up/down the slides or download, without the slide show option.

For big presentations, it is difficult to navigate until the desired slide, as we need to scroll down all the slides.