Tap the Message+ icon .
If not available, navigate: Apps > Message+.
From the "Messages" tab, tap the Compose icon .
From the "To" field, enter a 10-digit mobile number, a contact name or a group name.
As the number, contact or group name is entered, a matching contact may appear and can be selected at any time.
Alternatively, tap the Contact icon (located in the upper-right) to select a contact or group.
To add an attachment:
Tap the Plus icon (located in the lower-left).
Tap the attachment type (e.g., Gallery , Camera , Audio , etc.).