Select Home > Messages.
Click the Compose button.
In the To field, type the contact(s) or click the Select Contacts button to choose the user(s) or group(s) you want to send the message to.
Add a subject.
Write your message, or click the Use Template button to select a template you've created.
You can bold, change font, font color, font size, add hyperlinks, etc.
Click Send.