Take a look at the example game with the house you have to escape from. Also read the tutorials.

It is best if you plan your story first. Then draw some maps on paper. Describe where the player has to do some things (like unlocking a door)
Next create the world in the editor from the maps you drew earlier.
Click on the items you want to have events applied to and make them appear in the items list. (see manual and tutorials for how to do that).

If you still have problems let me know!

Posting in forum is disabled ...