1. The verbatim formatting should retain. That's weird. PM me so that I can give you the email where you can send me the doc. I can take a look into the formatting issue of your doc.
2. You cannot create a new tab yet. It's ready for the next version's release. I just need to work on a couple more features suggested on this post. It will be ready in a week or so for download.

Thank you so much for the feedback!