In another file, go to Edit Town. At the top left, you will see little white icons and one of them will look like a university. Once the game is done loading, select the buildings you want to place and copy them to the bin.
Then when you load up your dynasty for the first time, go to Edit Town. The buildings you saved will be available in the community lot bin at the bottom. The rest works just like if you were placing a consignment shop for the first time.
Remember only four buildings are allowed in a homeworld from that travel world.