Sharing Pictures & Files
Click the “Upload a File” button below the box where you are composing your post, then select the files or images you want to include in your message. You can select multiple files, or simply drag-and-drop the files you wish to upload directly over the post editor box.
Once the image files have been uploaded, new options will appear below the editor which allow you to insert the images as thumbnails (linked to the full size version), insert them at full size, or insert a thumbnail gallery of all the images attached to your message.
You can also embed images hosted on other websites. See
message formatting options for more information on how to do this.