A Teaser option is available for widgets with a popup (or slide-in) position.

To configure teaser settings, go to the Customize tab. Click on the eye icon to enable the teaser and on the pencil to edit the settings.

Here you can adjust the teaser message, choose the teaser type.

Also, upload images, select the position on the screen, and set the layout.

Other style settings are available on the Design tab > Advanced styles > Teaser

If you can't find what you are looking for, please contact us, and we will be happy to help.