There are a couple of ways to do this.
The first is via a Bookmark and Cross-reference.
- select the text you are wanting to make common
- click the
Insert tab and select
- name the bookmark, "ProjName" or something memorable, and click the
- go to your footer, and again in the
Insert tab select `Cross Reference
- in the new dialog you should be able to change the first drop down to
Bookmarks and see your newly created bookmark, clicking
Insert in this dialog should copy the contents of the bookmark
This is the way you are meant to do it but the bookmark is a fragile thing and prone to requiring recreation if you delete a character from the start or end of the bookmark.
My preferred method is now to use document styles and fields, which are much easier to apply, manage and generally work with. The process is similar to bookmarking but also allows you extra flexibility such as per-page titles that are dependant on headers and the like, I have a generic header that gets a single document title from the first page and copies the current page heading to the header as well.
- select the text you want to appear in your footer
- right click the text, go to
Styles and select to add a new style
- name the style as something you'll not be tempted to apply to any other text in the document, it is important that you only use this style on this piece of text
- in the footer again, under the
Insert menu select
- scroll down to create a
Styleref field, and select the name of the style you just created
Insert should insert your text
I find the styleref method to be more versatile and durable, and takes less time to fix when formatting or text changes but how you go about it is your choice.