You can display any content you want in the Document Sidebar by editing the Document Sidebar Power-Up.
Accessing the Document Sidebar Power-Up
To customize your sidebar, either:
Go to Settings > Sidebar > Customize Sidebar Settings; or,
Choose “Document Sidebar Settings” from the omnibar (Ctrl+K).
Customizing Your Sidebar
The entire contents of the Document Sidebar Power-Up will appear in your sidebar.
Customizing With Search Portal
Any Search Portal in the Document Sidebar Power-Up will appear in the sidebar. For example, we default the sidebar with a Search Portal that finds all documents. You can add your own sections as well! For example, you can create an "active" Tag and add a Search Portal to list any active items!
Customizing With Portals and Plain Rem
You can also manually add Rem to the sidebar by adding them to the Document Sidebar Power-Up.