Hello K,
Unfortunately our slideshow feature is only designed for displaying an image slideshow which will be showed in fullscreen on the installation's background.
If you need to display a slideshow on one of your dialogs, you could create a GIF image containing a the slideshow and place it on a dialog as a new image control. In order to properly display the .GIF file you also need to enable "Enhanced User Interface" from "Themes" page.
Another possible solution would be to create a
Billboard. However the GIF and the Billboard methods require the "Enterprise" edition of Advanced Installer.
Best regards,
Sorin