This pane located at the right of the workspace allows you to access additional services. Available actions are contextual and depend on the focus of the workspace. If no action is available in the workspace’s current context, the sidebar is hidden.
When one ore more services are available, the first one is automatically selected unless you navigate from a context where a service was already selected. In this case the service will remain selected, unless it is unavailable. For example, if you add a comment to an entity and navigate to a different entity, the Comments service stays open and changes content based on the selected context.