More dynamic "Space list" based on activates

The space list in Webex can become quite long over some time. I have set some favorites and below are my "other spaces". I would like to have an option to filter the view to "Frequent contacts/spaces (+ maybe an option to set favorites)" and another group of "all unread spaces". Don't need the "other space" group. If I am looking for a space or person i use the search.