KarelD:

Put your cursor in the bar AFTER the last bar of the song.
Right click and select "Song Settings".
Enable the box that says "Tag Exists" and enter the required info.
Copy and paste the last 4 bars of your song, to the bar after the
last bar of the song.

BIAB should then play the 4 "Verses" or "Choruses" and then jump to the tag ending that you have indicated.

Good luck!
LLOYD S