Split up 3D World Volume option

I would find it nice if it was possible to set the volume for nature and bike sound separately.
I don’t like the bike sound but the nature sounds. So it would nice if I could only reduce the sound of the bike and without reducing also the nature sound.
I hope I am not the only one with this wish and this topic gets attention.
Is there also maybe already a workaround, like deleting the audio files for the bike sounds?