Where do you edit the sub title on the Glider – Big Image widget. It has an option to edit the Title, but I can’t find where to edit the subtitle.
The subtitle is actually an excerpt for the post chosen to be featured in Big Image widget. So go to that post in admin area. Excerpt section should be located just bellow the content field. If you don’t see this excerpt section, go to the top right corner of the page and look for “Screen Options” button. Click on that button to make a panel visible. There you make sure that “Excerpt” is checked off. Excerpt field will now be visible just bellow the content area. Edit it and click “Update”.