I set up a WP site and installed the latest NG Gallery plugin, among others, to test it and see which I liked best. I couldn't figure out how to insert a gallery in a post. I checked the documentation and it says, "You can add galleries to posts or pages...by clicking the NextGEN icon above your post or page editor."
I don't see a NextGEN icon when creating a post or page in site admin. I have the Add Media button but that only allows me to insert a single image from an existing gallery. I also have a Gallery menu in the menu/tool bar at the top but it's just a copy of the options from the Gallery menu in the left column. I'm using the Twenty Twelve theme but that shouldn't affect the admin side, should it?
What am I missing?