Assign permission to established pages in bulk

[GoAncestry]

I have just come across a problem for my site.  I have multiple pages that have been created over time.  Now I created a new user group and they have no permissions to any of those pages.

 

When I create the user group you have no ability to select permissions to inherit.

 

Can we get the ability to assign permissions to pages in some way that leaves the use of pages somewhat appealing? At present I will have to set permissions on over 300 pages, one at a time.

 

I can do this though: Provide each member of my new user group a second permission group that already has access to previously existing pages, but that seems like putting a band aide on the problem.