Instagram is a social media platform that allows users to post pictures and videos of their lives. The app has become popular for its ability to quickly share photos and videos of people and things. There are a number of ways to rearrange Instagram posts. You can use the " rearrange posts " function to move pictures around, or you can use the " add photo " function to add photos to your posts. You can also use the " share with friends " function to send your posts out to your friends.