Can you copy the 2 bar loop to the bb\RealTracks\Loops folder
go to the Loop picker window highlight the drum loop then fill in the info below like tempo and beats (8).

In Realband it's all linear
verse 1
chorus 1
verse 2
chorus 2
solo 1
etc..

It's like in BB when you Edit > Unfold
you can easily highlight, copy & paste any section in the chord window.