I've mentioned Glance Folders a few times and I don't think most people have seen them (and there is a CIQ tie in!)..
Basics. Some devices have a ton of glances, and Glance Folders are a way to organize them. When scrolling up/down from a watch face, you see the glances. With Glance Folders you can have some of those glances in a folders, so the glance loop is shorter but you can still access them all.
Here's a case where I created a folder named "Weather" and I added two glances to it. My WU Weather widget and the native weather widget:
You see my icon/current temperature as well as the native weather widget's icon/current temperature. If you select the Glance Folder, it opens another screen and you see the normal stuff you see in a glance. This, by the way, is a screen shot of the fr255.
Here's the CIQ tie in. To show what I show for my app in the folder, that app needs to publish complications. It defines both the icon as well as the data. When defining a complication, this is the meaning of
glancePreview="true"