<< " Any way to do this? [Edit] but would like to do it in BIAB if possible." >>

"Move it to DAW" is the much preferred method but it's easy and quick to do in BIAB. It's often told that BIAB is not a DAW but it's single Audio Channel has all the editing features needed to complete this task.

The process only requires rendering the RealTrack Soloist track that has the 4 bar instrumental you want to preserve and use repeatedly to a WAV file, exporting it for the render to be imported back into the Audio Channel where those 4 bars can be edited, selected and then copy/pasted to the 11 areas of the Audio Track of your song. Delete or silence all of the audio on this track except for the 4 bars of audio you will copy and paste throughout the song.

You then use Bar Settings to Mute the RealTracks Channel at the appropriate bars and the Audio Channel will play the riff for those 4 bars in each of the eleven bars throughout the song.

The mix of the two tracks can be rendered and returned to the song and converted to a Performance Track freeing up the Audio Channel to be used again if necessary.

BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.