Feature Request Number: 14211
As outlined on the feature request, it would be useful if, as well as having divorced, annulled and married for relationship events/Civil Union, Married, Never Married, Unknown for Family Status, to have a status or event (perhaps both?) of Separated for couples that are still wed, but no longer live together (Event use case), or couples that were together, but are no longer (Family status use case)
It is present in other family tree software, such as Family Historian 7 and My Family Tree (Chronoplex) as examples.