Sound track's merged in Bins

Primiere V 23,
Laptop, Win 10
I'm editing a clip shot with an external recorder.
To synchronize the camera's soundtrack with two additional soundtracks, I arranged them in the timeline and synchronized.
After the synchronization phase, I want to start the rush phase when all sections within numbered Bins
because It's very inconvenient to work with dozens of clips at the beginning of the timeline.

The problem: when I move the synced clip and tracks into bins they switch into the "merged file"  format and I lose the ability to process the sound of each of the tracks later.
so- How do you overcome the "merged files" transformation when moving parts of the timeline into bins?