URL Mapping not working

Site URL: https://www.ianspeterson.com/

Hello,

I want to map the URL to a video in a gallery to a simpler URL that doesn't have the encompassing page's url as part of it. Basically, I want the item in the galler to have it's own URL  (picture attached below). I tried to do this but it is not working. 

Any idea why? Is this not how this feature is supposed to work?

Thanks. 

Hi!  Did you ever figure this one out?  If not, you have the formatting/positioning incorrect.  It needs to be /newurlslug -> fulloriginalurl:

/dogpark -> https://www.ianspeterson.com/videos/dogpark 301 

This should make it https://www.ianspeterson.com/dogpark

(You can also use 302 if you want to make it less permanent.)