Possible values:
Set to "true" to always automatically open this dialog
Set to "once" to show once per session
Set to "register" to show the dialog to show to new visitors
Set to "exitintent" to show the dialog when the user moves the mouse up to exit the page

Number of seconds before dialog box is shown

Set to false if the dialog box cannot be closed

Sets the height of the element. The default units are pixels. include the percentage symbol % to user percentage values.

Sets the width of the element. The default units are pixels. include the percentage symbol % to user percentage values.