Happy New Year!
This is a suggestion for a simple wording change. EVERY person I have taught to use WA gets confused by the existing wording:

After clicking Email > Templates and selecting a particular template, newbies ALWAYS make the mistake of selecting "Edit Template" instead of "Send email" because they fear that "Send email" means the message is all ready to be sent!

This confusion can be avoided by changing "Send email" to "Create email" or better: "New email using template"