X1 DVR: Recording Space Percentage

I have a simple question. I just received a new X1 DVR box (since my 4 yr old box was pixelating video on several channels). I was unable to save all my recordings from old to new box. But I've accepted that & my question is simply: in the Recordings menu, how do I get the percentage of space available to be displayed? It only says the # of recordings,  which doesn't help at all when trying to mange space.  My old DVR had that %. I've been thru every Setting option & even watched several xfinity YouTube videos for DVRs. But no luck. Anyone know how to get the % of space available to be displayed? Thanks for any help you can offer!