Saving VSE waveform previews

I’ve editing a particularly long video in the Video Sequence Editor. I created a 25% proxy of the video and that works great. The one problem/slowdown I’m having is that every time I load up my blend file, it has to process the waveform preview display. I go get something to drink and after a few minutes it finally comes up and all seems well.

What I’m wondering is, if this preview info can be saved so it doesn’t have to process it every time?

Can it be saved with the file, or saved somewhere on disc to quickly access? Much like the 25% video proxy.

Thank you for any help on this,

SooooOOOoooo… I take it there’s no way to save the waveform previews with the file so it doesn’t have to process them every time I load the project?