home page

Hi, I am trying to adjust the upper left widget in the home page (Hello world…) so that I can edit text as I want it – adding paragraphs, pics, etc. But all I can do is just to add text. I could get rid off the header 1 and header two

I also wonder how I could add widgets below the three widgets I already have on the home page.

The test page is https://www.kvetiny-praha.eu

Have a nice day,

Fiorita