You can add:
- One or more stories to the entire building above the last story by revising the mass. For example, if the original mass is three stories, you can add three more stories to the entire mass.
- Add a single story above any specified story. For example, in a three story building, you can add a story between story 2 and 3.
- Add a single story below ground level. For example, you can add a below-ground story for a garage.
In addition, you can delete stories from your building whenever you determine that you no longer need a story. To delete a story, use the standard method of deleting building elements. However, if you delete a story, you also delete any spaces in the story. If you need the spaces, consider copying them to another story before you delete the story.