FCPX newest version "share" option question
Hello, So I have the newrst version of FCPX and was curious,If I choose either "Master File" or "Export File" the file size is huge. Now if I choose Apple Devices 1080 or 720 I can't choose a location to where it goes. For example when I export with "Master File" I can choose where I want the filea destination to be. Which is my external hard drive. Whenever I choose Apple Devices 1080 or 720 it doesn't allow me to choose a destination and once it's done I can't find it.
Only reason I'm asking is because I upload videos to YouTube and when I choose "Master File" a majority of the time the file is huge which means uploading to youtube takes forever.
Any solutions?
iPhone 5, iOS 7, Need HELP thanks!!!