When you drag your Glider Stack out, you will see the above stack appear on your page.
Now add the content you want Glider to show when clicked. Note, if you are using embed code from a website, it will display weirdly in Preview in Rapidweaver, but will work perfectly when published.
Some of the settings you can change are location (left, right, top & bottom), colors (it even has Foundation color options), opacity, the type of button, icon in the button, and many more.
Now preview and enjoy! For an overview of the remaining settings please refer to the Glider Settings section. If you want to have more than 1 Glider on a page, please see this FAQ