Have you seen the Code Snippets and tutorials at the top of the Epik forum? – https://appfinite.com/forum/epik-theme-support/ The yellow sticky posts at the very top. You would add that code inside of a text widget whenever you want to use the code.
The home widgets only show up on the homepage. For other pages, you can add content inside of the Primary and Secondary sidebar….and that will show up depending which layout you have setup. You can change layouts at the bottom of the page or post editor.