1) Select the Messages tab from the top tool bar. Click on the "+Create" button to start a new message or choose an existing conversation.
2) If you created a new message, you will see a list of existing groups and individual contacts. Select the person or group that you would like to text.
3) When you select a contact you will now see any existing conversation with them populate.
4) Click on the paperclip icon below the text box. You will now be able to send any recent photos or upload a new one.
5) Select a photo and it will automatically be sent to your contact(s).