All

After using help and doing what I thought would make sense I am still stuck

I created a 41 bar song. BIAB automatically has a 3X repeat at the end. Problem is I want this song to play 4 choruses, not 3.
I clicked on the endings/repeat function.
I manually typed in 4 at the repeat function and on my BIAB song I created, it actually says 4, but it only plays for 3 choruses.

The other issue I'm having is I want the song to slow down in tempo for the last 3 measures of the LAST (the fourth) chorus to signify the end of the song.
I know how to slow down the tempo, but the problem is it is slowing down on EACH chorus as opposed to just the final chorus

Help is appreciated
Curt