New to ghost, have a few questions

Hello Everyone,

I installed ghost on a droplet on DigitalOcean two weeks ago. What really attracted me to ghost is the simplicity.
However, I have some difficulties. My prior experience in WordPress doesn’t help much.

  1. Do premium themes have different settings in the admin? - I am currently using Casper. I see many premium themes have some functions that I want like tag navigation. Do they come like this or it is after you edit them? Not sure as it is a preview.
  2. Where I need to start to edit my theme. I understand it is javascript, but thanks to my 0 coding knowledge I have nowhere to start even learning, as the documentation is even too complicated for me at this stage.

Thank you!