This idea has been merged into another idea. To comment or vote on this idea, please visit LATER-I-1144 Add/Remove Photos after you've created a post.
Many times when scheduling my IG posts, after the fact, I take additional pictures during a spontaneous situation and want to add those pictures to that scheduled post. It's tedious having to copy all the post text and hashtags, delete the post and then add it back to reschedule.