Thanks guys.
This design is something i've had in my head for a while but wasn't sure how to apply it. Maybe it could be used as a stadium roof
Aleks ,yep. But this one unlike SSP city, The buildings are seperate components and the land is all 'editable'(?). I just open 2 windows of SU, 1 is the city and 2 is just for editing.
I copy and paste the part i need to edit from the city into the 2nd SU window,then copy and paste it back into the city when i'm done.
If anyone wants to do a sketch a design for the city , i'd be happy to create it.