An assortment of odds and ends is lurking in that gear icon at the top of the post form. Most people won’t need to use them, but they’re always there for you, just in case.
- You can set the content source of your post.
- You can give your post a custom URL.
- The publication date of your post, which, yeah, you can sneakily change.
- The option to let people photo-reply to your post.