If you install version 0.99.5 I show how to move back and forth between layouts in Part 4 of the adventure tutorial in the tutorial section.http://www.scirra.com/phpBB3/viewtopic.php?f=8&t=4421 There are other ways to do it as well, but you could straight copy the code from the tutorial and it would work for you. The steps (shown in the tutorial);
1. Place your main guy via an event in the first layout.
2. Physically put an object (door, etc) in the first layout.
3. Add an event when your guy touches the door, move to layout 2
4. In layout 2, set position of guy to an object (or just x,y coordinates) in the second layout. Do not re-create him.
The actual code/events for this are in the part 4 tutorial.