LEARN TO READ
  Come on, Canderis, there's no need to get angry. darth hk-47 may not necessarily have English as his first language, so he may be having some difficulty getting his message across.   
 @darth hk-47: 
 As others have pointed out, the process of building the area is essentially the same as making an area for KotOR. 
 The only major difference you should be concerned with as a beginner is that in TSL there's no visible cheat console, which means the 'whereami' cheat can't be used to get the necessary co-ordinates to spawn objects in your module. 
 All you need is the whereami Armband by Darth333 and you're away though! 
 Here's a link to where you can get the armband:  
http://www.starwarsknights.com/tools.php#ae) 
 Good luck!