Add Top Navigation Menu…, etc. Customize/ Hard code

Hi!

I love this theme! It’s simple, clean, and beautiful. However, Is it possible to make edits to the theme via hard code?

1. Rather than adding side bar widgets I would much rather add items via side bar.php file. I add the code, but nothing shows up.

2. I also, wish to add a top navigation menu. The code is correct and has been tested, but doesn’t appear properly when add to this theme.

3. I also wish to add a floating footer bar… it only takes three sets of code. 2 in the footer.php and one in the style.css. I add this code also, but nothing appears. :/

Whatever you can do to assist me would be greatly appreciated. My website is