How to put a button?

Question

WordPress

Good day to all
I can't set up the site template. There are 10 homepage templates on the homepage under the Home button. I don’t know how to remove the entire parent tree and put, for example, the Home button 2.
I put it in the home system, but I can’t remove the whole tree. pages with crin 2
From the Admin panel, Pages Deleted all unnecessary pages and she also remained alone in the parent tree.

The second option is a button with a parent tree for 2 requests, they also need to register one selected style
with screen 1
Tell me, please share your experience.
you can also telegram @olive332

Not so long in Wp, just learning.