See, for example:
https://www.msofficeforums.com/word-...html#post46903
and, for different elements from a selected item to be output to different content controls, see:
https://www.msofficeforums.com/word-...tml#post120392
Note: You should not use content controls and formfields in the same document. They weren't designed to be used that way and trying to do so is a known source of problems.