I want a message form that can be populated by a drop down list of templates that the user can chose from

I have a message form,  the user can free type a message to be sent or emailed.

However we have some standard replies.  I want the user to able to select this and for it to populate the message text box.  The user can then edit or adjust the text if need be before sending.  How could this be achieved?

Also is there anyway to merge date from the underlying table for the message ie ApplicantName.

So I have the message table with a text field in.  I was thinking of having a connected table with the message templates in which the user can pick from.  However I don't know if I do this whether it it can populate the message (text) field to allow the user to edit before sending.