Link multiple mpegs together in DVD Architect?

[reboot]

Just playing with the demo of DVD Architect 2, and I have multiple SVCD mpegs, ready to author. They're encoded so 6 hours should fit on one dvdr.
Load the first 3 into Architect, and it's saying the output will be 5.7gig!
OK, I figure it's going to re-enocde/transcode the files to half D1 (what I selected in the properties). I'll shrink it later.
Now, how am I supposed to link the first part to the second, and then to the third?
Can I not do it? It says "Create customizable end actions for menus and buttons in your DVD project. Set DVD content to loop, hold, or timeout at the end of a button or scene change. Set multiple end actions for a single menu item without rendering the file." so I was assuming I could do what I want. Instead it returns to the main menu after playing the first portion.
DVDLab let's me do it much easier, but I would like to see the completed output of Architect with AC3 audio at HalfD1 video.
I know I can join the files in other ways (too much hassle), or author in other software (not the point). Sooner or later I may purchase Vegas, but this could be a critical point.

[reboot]

Nevermind. I'm so stupid sometimes. Expecting one app to be similar to another. I found it
Now the project is over 8.7 gig...sheesh.