I am working on a rather large map.  The Western New York region (Buffalo, NY USA.  I am having difficulty understanding the concept of iportals.  I want a train to enter a portal and reappear in another part of the map.  I could just loop the track but it seems very unrealistic since I am trying to prototype my area. Obviously I do this with my real life model railroad because I have to (space problems).  I'm not in a position yet to merge routes, or send consists to another Trainz member. 
I'll probably kick myself for not figuring this out on my own. I guess I need step by step instructions.
Thanks
Jeff S.
				
			I'll probably kick myself for not figuring this out on my own. I guess I need step by step instructions.
Thanks
Jeff S.