To create a content slide click on the 'add slide' button. This will bring you to a slide creation page:

You can add images, videos, and documents to create content within Quest using the toolbar offered:

This box also accepts Javascript and CSS for additional control using the check-box.

To insert a file just click the insert file icon, drag and drop your material into the responsive filemanager box, confirm it's all there (example below), and return to the file list to insert–your content will be hyperlinked from the learning module slide.