Hello,
Tony here with Buttonizer! Good questions:
1) We don't currently support horizontal buttons via our default options, although this is something we'd like to support in the future. It may be possible to use custom CSS 🤔. You can add your own Custom class or ID to the button group under the Style tab (see below), and add CSS on your site to customize how Buttonizer displays. It may not be super easy, but it's worth a shot if you're interested in trying!
2) It looks like you figured out how to hide the "+" menu button, but please let us know if you have any other questions about this 🙂
Cheers,
Tony