Just a few questions after purchasing a license

Hello. Thought it would be a relief after installing Color Mag Pro, unfortunately a free version was somewhat easier to manage. First I wanted a caption under featured image, but the caption also shows up in archives and categories. Why not enable a caption in a single post? Secondly where can I edit sharing buttons and maybe add some other socials. Third, the upper main menu extends beyond the layout boundary

The page I need help with: [log in to see the link]