How do I create below grade building stories?

Example for creating below grade building stories:

1. Let’s say you want a total of (4) rectangular basement stories – using 4m floor-to-floor height and 3m ceiling elevations, but you want the bottom (2) basements to be 30m x 30m, and the top (2) basements to be 35m x 35m (center aligned), with (1) zone per story … and then you wanted 10 stories above grade with similar parameters.
2. Currently, you need to start with the lowest story, so you parameters for basements 3 & 4 would look like this: (note the the ‘Base Story’ index is -4)
   
   
   

   To complete these basement stories, simply click ‘Save Stories.’

3. After saving those stories , you parameters for basements 1 & 2 parameters would look like this: (note the the ‘Base Story’ index is -2)
   
   
   

   To complete these basement stories, simply click ‘Save Stories.’

4. Then – to add the (10) stories above grade, you parameters might look like this:
   
   
   

   To complete the building, simply click ‘Save Stories.’