Hi, this is not something related to Cornerstone specifically, but you can add this to your link HTML target="_blank" to open links in new windows.
Is it possible to enlarge the pictures when they are clicked on?
Hi, here is WordPress’ documentation on inserting linked images into your posts. If you are inserting a thumbnail image into your post, then you can choose to link it to the original image, which is generally larger.
I am confused. I am editing a page with cornerstone. On the left under the photo options I see a bottom labeled open link in new window.
Hmmm, it sounds like you may be referring to a different plugin that uses the same name. The Cornerstone plugin in WordPress’ official plugin directory is not a page editor.
You should be able to find a link to the plugin’s official home page below the plugin’s name on your site’s plugin admin page. You may also be able to find information on getting support via the site where you downloaded/purchased the plugin.