An admin/broker of a site can create Custom Status Groups to associate several Property Statuses together under a Custom Group. 

To create a Custom Status Group, go to Settings > Statuses > Custom Status Groups > New Status Group

Once in, name your status group > choose as many statuses from the MLSs as you would like to associate them with this group. You are able to filter the statuses to ones that are available only when logged in.

Create Group once done. 

Once done, the status groups will be available under Settings > Statuses > Custom Status Groups

To activate the status groups, go to Settings > Configurations > Property Search > under Sales, check box for "Use Status Groups?"

The groups will then be activated and visible on the front end search page.