Go to Demos and click Add Demo, then choose Linear Demo
In the Details tab — set your internal and end-user title, and select language
In the Content tab — add an optional intro video, then add your topics one by one
For each topic: give it a name, select the Page (media source), optionally add a Walkthrough, add attachments, and set CTA buttons
Add as many topics as needed — each becomes a selectable option for the viewer
Complete the Style, Prompt, and Access tabs as you would for a Basic Demo
Create all your Pages before building the Linear Demo — you'll be selecting them during setup.