YouTube Gaming

Conclusion: The YouTube studio editor is the only way to edit a past live stream and keep it in the Live tab, and there does not appear to be a way to upload custom effects to the audio library. Keeping this thread up for the next person that has the same questions I did.
Update: You can’t use effects from the audio library in the studio editor. WTF is even the point of having them?

I have started censoring my swearing on my videos using custom bleep sounds and I think it actually adds a layer of comedic effect. Once I start going live I don’t want to worry about trying to do that in real time while gaming but I’d like to censor the VODs after I end, and if possible I’d like them to stay in the Live tab.

The YouTube Studio editor is painful to use and I don’t think I can use my own sound effects there but it feels like that’s the only way?

Is there any way for me to download the VOD, add my sound effects, and then re-upload it as a Live Stream so it stays in that tab, or would I need to make a “past livestream” playlist at that point?