Delink Computer Audio sharing from the regular screen share

Good day!

I quite like the fact that I can share my computer audio without necessarily sharing my screen. It would be great if this functionality could somehow be de-linked from the regular screen share!? I just facilitated a workshop whereby one host was was sharing a PowerPoint and the other host wanted to share a 15 second jingle but could not do that without first having to kick the other host out!?