Lock some pages to do not be deleted on multisite?

Hello Guys!!!

I need some help here... In my multisite network I use the WPMUDEV`s New Blog Templates plugin. So, when my users creates a new site, this site has some configurations set by default.
The problem is that one of the default things is some pages that are created automaticaly, so my users can't delete this pages at all. They can just rename the pages and that's it.

Each page has a shortcode that can not be deleted to the business to work.

Is there a plugin to lock specific pages to multisite admins to not delete or edit the content?

Thanks guys!