This question is an exact duplicate of:
Previously, I remember there was a button to edit your profile and propagate it to all the sites. Now, you edit a site profile and then can go to network profile and import your edit.
Now, there are 100 sites, and aliens have very poor memory to remember which one is the sites was used as latest copy for the network profile. At the same time, I see no way to copy the network profile into a local site profile (to be able to edit it and copy to global profile, achieving the "edit network profile" demand). I would like to have one global profile edited separately and additional per-site profile at every site. What is the recommended procedure to edit your network profile at the moment?
From comments, I have got to know that there is no separation between sites and "copy from" is misleading in the Network profile because
Save Profile button saves your profile globally, at every site. So, once you edit your profile and press it, it makes no sense which profile you copy your Network profile from. It however remains a question how to open your Network profile for editing, once the site/global profile has diverged from the Network profile copy.