How to load another level into the game.

1. Open the folder:
C:\Users\USERNAME\AppData\Local\MyProject6\Saved\SaveGames

2. Back-up your current level.
Rename the current Builder.sav (if exists) to something where you'll recognise the contents,
like house_builder.sav or car_builder.sav for example.

3. Copy the new .sav to this folder and rename it to Builder.sav

4. In the game, open the menu (currently ' L ') and select Load Level.

To get your old save back, remove/rename this builder.sav and rename the original.

** I'm not sure if you need to close the game completely, or if you can do this while it's running to save time.