Thanks everyone for there help. Thank you Grazie and RogerS!
I am trying to pull down the highlights in the back of the subject (the elevator shaft is too bright), without lowering the brightness of the 2 people.
RogerS: Yes, lightroom/Premiere Pro would be easy and that's what I was wishing for in Vegas..a simple slider. It's not perfect, but close enough and loved the outcome you provided.
This footage was shot on a sony a6500 4K@24p Cine4 in the S-Gamut color space. It does have s-log2/3 but I find it's difficult to use when filming for exposure and can easily mess up the shot (by not having the right settings). Do you think this is good enough for grading
I agree Vegas has some limitations when it comes to advanced adjustments like shadow/highlight controls. For editing it is a lot easier to use than Premiere in my experience (had to use that for work) and Premiere also has stability issues.
I also shoot the Sony a6500. I recommend Cine 2 over Cine 4 as it gives you a somewhat less contrasty image that makes these kind of adjustments easier to do in post. S-gamut isn't an appropriate color space for Cine. For colors that are closer to standard right out of the box, try Still or Movie instead. If you're looking for accurate Rec.709 color with less work, try using Cine 2 with the Leeming LUT, a technical correction LUT. https://www.leeminglutpro.com/
S-LOG 2 is usable when you need maximum dynamic range but I don't bother with it- it's too easy to get banding. S-LOG 3 is not appropriate for 8-bit cameras, it's too flat. The only reason to use this would be to match high-end Sony cameras.
The shot is overexposed, there's a lot of pixels in that image that are 100% white, you're not going to recover any data from those spots by dimming highlights, no matter which app you use. Always best to shoot a tad underexposed in situations like this, you can always boost underexposed video to be brighter, but you cannot dim overexposed foottage, the whites won't have any color information and you end up turning your highlights into a gray mess if you try too hard to compensate.
It turns out we both had the same mentor. Wasn't it Ansel ...? somebody?
My favorite example of someone who took the Zone System from the darkroom into the 21st century is our own @amendegw
https://www.flickr.com/photos/34185009@N02/