Task Manager - Cant 'Add Status'

Just trying out the Task Manager. and Im have difficulty with the ‘Status’ options.
The Kanban only shows the ToDo column. If I add some Status in the Admin panel for Taks Manager then I try and ad the status 'In Progress" and"Done" . But when I try to edit the Task the new Status are not available in the pull down menu.

Am I missing something?