Add collaboration feature to the "settings" button on the dashboard
It is a hassle to go into each site to have to open the settings > advanced > collaborators and exit the editor > back to the dashboard and start over again, if you have a few pages you share with the same collaborators, then it is quite a hassle and wastes a lot of time. This function could be added to the settings button of each site (which currently holdes very little functions).
