Brenau has purchased a script for performing Mail Merges directly in Google Drive called "Yet Another Mail Merge". For information on how to use it, see the following video:
https://www.youtube.com/watch?v=89vHrABUEbM
For detailed documentation, click here:
https://support.yet-another-mail-merge.com/hc/en-us/categories/201313669-Getting-Started
This screenshot shows you were you will see the script when you are in a Google Spreadsheet:
http://www.screencast.com/t/TX1AytMWrpI2
Helpdesk