1. No as of now you can't, there's no real different "division" per say, but could be an interesting idea for different skins depending on the airline you're registered to, or allowing a pilot to select their skin
2. Yep, there's an editor mode in the page editor, you'll just have to add PHP code directly into there. I'll have a tutorial soon on using the API, but click docs above and then at the bottom of the page there are some docs there.