After creating your JSTOR account, click on Workspaces at the top right of the JSTOR page.
Click the Create Folder button. You can add items to workspaces without creating a folder, but creating a folder helps organize your cited saved works.
When accessing an article, image, or another JSTOR resource, you can save items to your workspace and folders.
With Folders and Workspaces, you can manage, cite, and create "presentations" of your saved material. It will open a full-screen window with a slideshow you can proceed through.