Unfortunately that is no setting for this, but you can modify on this file if you would like to show the page owner by default.

JoomlaFolder/administrator/components/com_easysocial/includes/template/helpers/form.php

Find this line of code 858

		$viewAs = $session->get('easysocial.viewas', 'user', SOCIAL_SESSION_NAMESPACE);

Replace with

		$viewAs = $session->get('easysocial.viewas', 'page', SOCIAL_SESSION_NAMESPACE);

Then that view page as button, you have to use CSS to hide it.

Ok. Thank you Arlex

You are most welcome, marking this as resolved.