You can bookmark a public project, your own private project, or a Smart Folder by navigating to the Recent, Projects, or Smart Folders section in the left sidebar, and then clicking on the Bookmark icon.

Once you bookmarked a project, it will appear under the category Bookmarks on the sidebar.

Tip: If you find the order of sections on the sidebar not in your favor, you have the option to rearrange them by simply dragging and dropping them into your preferred order.