Replicate demo theme

I would like to replicate the demo theme https://demo.themeinwp.com/eportfolio/

However, I couldn’t find any documentation or advice on how. Clicking on [View Documentation] link at https://www.themeinwp.com/theme/eportfolio/ just refreshes the same page.

By default, it seems there are lots of differences from the demo, e.g. I have no clue how to add the masonry blocks on the right.

I have widgets in the Portfolio Template Widget Section, but these don’t seem to appear on home, etc.

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