This question has been answered by webandflow. See the first response.

Or, update to 2.3, set the default_context on the user group level (so you don't have to create it for each individual user), and let them use the new + symbols per contextDocumentation?
Or, update to 2.3, set the default_context on the user group level (so you don't have to create it for each individual user), and let them use the new + symbols per context