You want to use the cross reference feature:
- Select the text you want to copy
- Insert tab > Links group > click on Bookmark
- enter a descriptive name for the bookmark, ie Customer_Name, Job_title
- Click on the Add button
To use the bookmarked text:
- Insert tab > Links group > click on Cross_reference
- Select "Bookmark" from Reference Type drop down
- make sure Insert Reference to says "Bookmark Text"
- select the required bookmark name from the list
- click on Insert button
- click on close button
In File menu > Options command >Advanced option > Document Content section:
(Optional) Make sure that "Show Bookmarks" is turned on
(Optional) make sure that Field shading is set to "Always".
With those 2 options you can more easily identify where bookmarks are cross references exist ie;
"Show bookmarks" puts the braces around the words (marked with yellow highlight).
"Field shading always" makes the cross referenced text display in the grey box (marked with green arrow) <geeky grin for green arrow>