If you have a workspace with many resources, you’d probably wish to have it all organised and clear. The solution is simple - use separators. They’ll keep your workspaces nicely structured.
To add one, simply click + button and choose Separator. Enter a title (or not — it's optional) and press return.
Pro tip. If you create the same separators in other workspaces, you don't have to enter their title every time. Instead of choosing Separator in the Add Resource menu, click Existing Separator and choose one.