Help with a more custom nav bar

Hi there-

I have a few questions regarding the Nav area:

1) My client needs to add some html text and buttons to the Nav bar of this theme. A la “Address of company, and a call to action button like “get a quote today!” sort of thing. Ideally, this is to the right of the Page links. I have played around with the presets and it does not look like this is possible. How can we make it work?

2) We are trying to use a mega menu, but is there a way to make the “category” in which pages exist in the drop down NOT a page? In other words, can it be just plain text without a link to a page? It looks like from the WP menu building tool, any item that goes into a menu must be a page, or a post etc.

3) Finally, a quick footer question. I would like a bit more control in our footer. Can I choose to hide the footer socket from wordpress and then add RAW HTML at the bottom of each page using the <footer> tag? Would this solution work?

Link to dev site below in private area for reference. Thank you!!