Closed captioning when you have clips of audio across many slides in one scene

My organization is just getting used to including closed captions (I had to fight for this... be careful what you ask for).

I am hoping someone can help.

Most of the raw project material I receive from my SME's to move into Storyline is PPTs with audio on each individual slide. So, I am having to manually put the CCs in for each slide (it is incredibly time consuming even cutting and pasting from the PPT notes - which are not always accurate and require some tweaking). Yes, it is great that Storyline analyses the audio and attempts to put the place holders in, but I am still having to manually put in the text (well, copy and paste). 

I have other projects equally frustrating where, I have a large chunk of audio I need to pair up to the PPT slides. I send away for the srt or vtt files (and a transcript). However, because each slide still needs it's own tiny clip from that larger audio file - I do this in Adobe Audition since there is often other edits that need done, I am back to manually putting in the text into the sort of /almost correct placeholders that Stroyline generates in the CCing (but there are dozens of slides).

I am finding I am not able to use those srt or vtt files for CCing (it it will just lay it on the first slide because that is the only time readings Storyline recognizes - it doesn't look at the whole scene or collection of slides - and why would it since the time stamps are for one large file). So, I have tried other work arounds like laying the whole audio down on one slide with the file and then breaking it up within Storyline, but it messes the CCing up so bad it doesn't line up at all and I am back to manually adjusting and putting them in. 

Is there anyone that has found a way to deal with this? I would think many of us would be working with either smaller clips of audio on each slide, or importing PPTs with audio included? 

Thank you for any suggestions you have!