more designs

While, I LOVE the layout of the flex house and it's multi-function...can it be connected to the main home?  If one, needs a 4 bedroom, but, doesn't want their small children to be in a separate building, can the design be reconfigured and still keep the features of an IHouse?  We visited the Knoxville convention center for our tour and thought it was the smartest, greenest home in this pricepoint...Good Job!  I would love to have one in our near future, but, would need more options...as far as layout.