PG Music Home Forums PG Music Wishlists Band-in-a-Box Wishlist Unfreeze/regenerate one bar on one channel

First. Neither suggestion I made are "Charlie" work-arounds. They both are PG Music features designed to accomplish exactly the OP's stated 'wish'.

Both suggestions accomplish the task from solely within the BIAB program.

Not knowing what version the OP owns, it's impossible to specifically reply to his 'wish' other than advise him regardless of his version, his 'wish' can be accomplished using BIAB to unfreeze/regenerate one bar on one channel.

Regarding PG Music's seven minute tutorial, Tobin is further than 2 minutes into the video before he starts his actual demonstration. There are only a few steps to complete the actual task and were Tobin simply processing the task, it takes less than a minute.

I'm curious to which step you found to complicated to do?
Select a channel in the BIAB Mixer?
Select bars?
Rt click on a channel to open the RealTracks Picker and select the Multi Riff Option?
Loop your selection?
Solo the seven multi riffs to audition them?
Choose your favorite riff from the seven?
Import your favorite riff selection to the Audio Channel?
Mute the RealTracks Channel at the appropriate bars for the multi riff to play?

Sadly, you're confused about "it has the undesirable side effect of requiring you to convert your bars to an audio file instead of staying with RealTracks."

In the tutorial, Tobin generates four bars of an added RealTrack to an existing style. He could have chosen any of the Style's RealTrack Channels to Multi Riff. Tobin only generated the four bars and discarded the remainder of that RealTrack because in the tutorial, he only wanted four bars of the instrument soloing so the soloist RealTrack was not necessary to keep. He could have generated the solo normally and found those four bars to completely satisfy his need but the purpose of the tutorial was to demonstrate the Multi Riff Feature which gave him 7 - four bar solo's to choose from.

In the OP's wish, we don't know which of his RealTrack channel's is selected, if it's an added RealTrack to the Style or a RealTrack from the style and it doesn't matter. The process is the same except the remainder of the RealTrack remains rather than discarded since the OP is completely satisfied with his RealTrack except for two bars. Therefore, only the two bars that are unsatisfactory are addressed.

In fact, the entire RealTrack remains intact. Only the Multi Riff the user selects is placed on the Audio Channel. On the original RealTrack the bars the multi riff will replace are muted and the Multi Riff plays in the place of the muted bars. At no point is the original RealTrack lost or altered, new audio generated by the Multi Riff feature is punched in - to replace the muted audio from the Audio Channel.

Regarding my second suggestion, which is only necessary if the OP doesn't have 2020 or newer BIAB, copying a bar from one location and pasting to another bar somewhere along the audio file, is elementary audio editing plain and simple. Every DAW in existence can do it. It can be done in a program as simple as Audacity. Elementary stuff that's quick and easy to do in BIAB.