No singular actions are available in general mode per floor. In detailed mode, you have multiple actions to take per floor or unit in order to optimize your usage and meet your goals for the functionality of the building. Divide: Divide the underused area between apartments to maximize the usage of your floor Copy apartments: Copy the content of one floor to another Edit unit: By clicking on the specific unit you can edit its size, add and remove subuses or maisonettes. To add a sub use click “add sub use”, select the desired sub use and click add. To add maisonette click “add maisonette”, edit its location and size as needed and click add. A maisonette unit will be added with the correlating sequence number of the parent apartment. Maisonette icons will help to identify the cross floor units. In order to make designs with maisonettes more feasible, building cores can now be reduced starting from the top floor.