Using rich text input

From what I can find on Velo, to use a rich text box I need to add an HTML element to the page and then connect this to the rich text element. But how can I add an HTML element? Apparently it can be found under “more”; but this isn’t in the ‘Add’ menu or anywhere else I can see.

Well, eventually I found it in ‘add - embed - embed a widget’
It’s a box where I can add HTML - so I assume that’s what I need!
Hopefully I can now work things out from the tutorials.