Multi Region Control?

i have a question…
is it possible?
my scenario is to control a layout that has i.e two vertical region. i want to give permissions to 2 users that every user just can access to view or edit the content.

So if you give a user view/edit permissions to the whole layout (on Layouts page) you can (in this case, should) tick the “Update these permissions on all layouts, regions and media.” checkbox.

Then said user will have view/edit permissions to everything on the layout.