So, our site has a lot of pages and sub-pages due to us being a non-profit and running many different campaigns/focuses/etc. One of the campaign organizers uses the left sidebar all the time, and only a few of the other pages use it. We started out just using the ATO manager to turn off the Left Sidebar on all other pages except for hers, but we've gotten to the point that finding the page number and adding it to the exception area each time we create a new page has become fairly out of hand. We have about 35 pages with only the right sidebar, and 25 pages with both the right and left sidebars.
I have been trying to figure out the most efficient way to use both these layouts. What I would really like would be to make all of the sub-pages for the "campaigns" page have both sidebars (and any page created as a child of those pages also have both sidebars). I have a template for left-column-on, and can make on for left-column-off, and that way if someone wants to make a child page w/out the left sidebar, then can just pick the "off" template. And if someone wants to make a page outside of that section with both sidebars, they can choose the "left-column-on" template.
Is there any way I can do this? Is there any way I can make the theme automatically have all children of the "campaigns" page use both sidebars? It would make things so much easier!