>>> "On the final (end) chord, the instrument really "rings" out. Kinda like a bell. I don't want that. I'd like it softer and what I'd call more natural, in line with the tone of my song." <<<

This happens to me on occasion as well. According to my workflow for that particular project, like others have mentioned, I handle it in a DAW.

Sometimes I'm working on a project that I don't intend to use a DAW and hate to move my project to another program just to take care of the one guitar ringing to loud on a hold.

For those projects intended to be done from start to finish in BIAB, here's how I tame "the ringing hold".

Select the measure (bar) where the ring out occurs.

Open bar settings (F5) and select the offending track.

From the drop down menu, select Fade (per bar)

Select a negative number ( -1 to -127 )

Normally a negative number between -12 to -24 provides satisfactory results for me. But the song will determine where the hold sits best in the overall mix.

If the hold is the last note of the song, the longer the fade out of the song, the more pronounced the guitar fade will be.

If the hold is somewhere in the middle of the song, be sure to use bar settings again in the next measure to return to normal setting for the guitar track.

Some experimentation may be required. For some songs, the fade out placed on the actual measure of the hold is insufficient to tame the hold. In those cases, I use bar settings in the preceding bar to force the fade out to start earlier. In those cases, the negative number is usually a bit lower. ie: -6 or -8
Experimenting will get it sounding right for you and you get to stay in BIAB. Hope this helps.

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.