Are you looking to email a quote to a customer? That would be handled with a notification message. 

https://community.ifs.com/fsm-product-updates-114/5-ways-to-get-the-most-out-of-fsm-notifications-3139

or the reference guide starting at page 535 https://community.ifs.com/fsm-product-updates-114/fsm-6-update-5-reference-guide-2300

First you need a Mail Merge Template (accessible from menu), the baseline one doesn't really display/function and gives Word error this is not deeply ventured functionality and is really just a means to send an email as Word or PDF.  Create your template,  with basic information such as place id, quote id, total line price etc.  Save it.  Return to Quote screen. Select Mail Merge, then select your template not baseline one.  It will give you option of Word or PDF, and then “Send Mail”  

This is better accomplished as a notification and attached report as Christine indicated and should not be recommended in my opinion. I normally remove the button from quote screen.