When creating a new message in the program, you see the bellow window:
Here, you easily can write the text of the message, use Cut/Copy/Paste options when needed as well as Redo and Undo. In the case you are writing message on your native language which is not English, you may need to use Unicode option. To know when your message will be delivered to the recipient, check Request delivery report.
To send the message, or to write it to the phone, you first should choose the recipient(-s) entering the phone number yourself or choose it from the program's Phonebook using To option.
Using To option is easy and helpful. You will see in the opened window all the contacts are in the program's Phonebook and may choose one or several contacts from there to send SMS message to. If you have lots of contacts you can use the Find option:
But the main point is that you can create Favorites group, for example, for the ones you are sending messages more often. Simply click on the button Favorites... in the left corner to assign the contacts for the group. As well, you can use the Caller groups allocation to choose recipients, that case click on the Groups icon.
After the message is created you can either send it or Write it to the phone.
See also: