User Configuration > Administrative Templates > Microsoft Word 2016 > Word Options > Advanced
User
HKCU\software\policies\microsoft\office\16.0\word\options
This policy setting controls the "Use smart paragraph selection" option found under File tab | Options | Advanced | Editing options. If you enable or do not configure this policy setting, Word will automatically select the paragraph mark at the end of a selected range of text. If you disable this policy setting, Word will not automatically select the paragraph mark at the end of a selected range of text. However, a user can still select the paragraph mark manually.