Use a directory to show the files inside?

Can I design a layout in which PDF files or JPG files are displayed in chronological order and a user can change them as needed? So a directory whose content should be displayed and every 15 sec. Switches between the files in the directory?
Is this possible?

greeting
Chris

Thank you for your message. It is not possible to set a directory for your Layout to use to cycle through content. Any media items that will be displayed by the Player will need to be individually added to your Layout.

Many Thanks.