In the Page Menu Bar there is the link to HOME.

Is it possible to put the same link to HOME in the Sidebar Menu?

Thank you very much indeed for your always very precious help!

The 'Home' in the menubar is generated by Atahualpa. The 'Pages' widget is part of the default wordpress install and doesn't know of this home.

What you can do is install one of the 'page' plugins like 'page links',
create a page called 'Home' - put in a page order of '-1' so it will show first in the page menu
put in the blog url in the page links option of the page
go to ATO->Page Menu Bar->Home link in Page Menu Bar and clear this option out.
you may want to set the 'Pages' widget display order to 'page order' so it will show on top there also