Automatique deletion of unused capture audio

Hi everyone, i look for this one feature but can't find it. It should be somewhere as I find it so normal and useful...

I record voiceover for few project. But as I m not a radio star, i have sometimes the need to restart some piece of the voice over. Sometimes 2 or 3 times, sometimes more than then

Each audio file resolve capture is place in the capture folder.

I look the other day and i have more than 13 gb of audio...

So I look for a way to tell resolve to delete audio file that are not in timeline (because logicaly, if you do voice over directly in timeline, if audio files aren't anymore in these timeline, that mean that I deleted from it...).

Bonus, if I can tell to look in every timeline in my project (there should be a way^^) so I don't have to reopen each project.

Hope someone can help me with that.

Have a nice day

Peace

Any one ave an iea ?

I always record V/O outside of my NLE, on a Digital Audio Recorder like a Zoom.

I have a Blue yeti X, so that's a shame i can't use it ^^