I have been trying to start a basic mission using the Navada map by creating 4 / 5 basic waypoints.  I place my aircraft on the runway as "takeoff" and when I add my first waypoint, the location where the aircraft is taking off is automatically designated as SP.  What does "SP" mean?  Does it stand for "Starting Point"?  In many tutorials I have watched, there is no "SP", but a "0" as the starting point.  Also, the last point always comes up as DP > Destination Point? (I am just guessing here).  And if "DP" = Destination Point, the editor won't allow me to qualify it as a "landing" point, so I am not sure I am closing the loop on a complete linear mission. 
 
	 
 
	Also, when I fly my mission to test it, after I reach my waypoint 1, the editor seems to take me back to the SP point, instead of switching to waypoint 2 automatically.  Why? 
 
	 
 
	Finally, is there a tutorial, or some kind of text that explains how to input the conditions mentioned in the CDS Manual for a more immersive experience?  I am not familiar with the script language, not sure how to enjoy that part of the editor without any clear guidance.
 
	 
 
	Hope someone can help - thanks.