permalink customize wp-admin

Could you offer some more details?

with permalink I can to customize a part of the url;
so I want to do for customer’s url admin too
example

/wp-admin/edit.php

to
/admin-John/write-article.php

I think this have two advantages:
customize url for client and a major security: a malicious customer don’t know the really files path in the server.

There’s nothing native in WordPress that you could use. You could use Rewrites to accomplish what you want to do.

for Rewrites what you want to say?

I think is necessary “only” write something inner a file of wordpress; but what? and in which point?
I think in the code where there are the conditions that verified something type:
if ?page_id=id then rewrite url using the variable option-permalinks (by admin page)