1. Select the post. 
  2. Drag your image file to the box that says Drag File Here. Or, add images to the comment thread by dragging image files to the text box on the right. If the post is associated with an event you can select anything in Event files.
  3. If you've added to the image box, click Save. If you're adding the image to the comment box, click Comment, click the small image counter and set as post image, then click Save

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