You could also look into Master documents and Bookmarks!

If you go here and look at Master documents, you could create one Master Document, and add the other documents for the build into it, as sub documents.

If you then look here at Using Bookmars and fields, you could add 1 field to each sub document - then just update the Master document, and then it will update all the subdocuments in one go - while still being able to open the individual documents!

If you were to set the Master document as 'Hidden' then no-one but you knows it exists! (to open it - either put a link somewhere before you make it hidden, or go to the folder in WinExplorer and type the name in the address bar at the end of the path)

Hope that helps.