A family of Microsoft word processing software products for creating web, email, and print documents.
It is simple enough to use VBA to update a series of dropdown content controls so they all have the same options. Beyond that, for:
Dependent Dropdown Content Controls, see -
https://www.msofficeforums.com/word-vba/24661-help-cascading-dropdown-list.html#post77762
and, for multiple levels of dependency:
https://www.msofficeforums.com/word-vba/24661-help-cascading-dropdown-list.html#post132696
Cascading Dropdown Content Controls, see -
https://www.msofficeforums.com/word-vba/29617-creating-reducing-drop-down-list.html#post94603
Dependent Text Content Controls. see -
https://www.msofficeforums.com/word-vba/16498-multiple-entries-dropdown-lists.html#post46903
and, for different elements from a selected item to be output to different content controls, see:
https://www.msofficeforums.com/word-vba/16498-multiple-entries-dropdown-lists-5.html#post120392