You can add multi-page overlays in LXF and TIFF formats to the PageOUT configuration. All overlay pages can be used in the output, or you can select specific overlay pages when you configure the PageOUT sheet. For example, if you have a PageOUT configuration with the page types First, Body and Last you can select which overlay page to use on each page.
You can use variables and scripting, for example the CallProc scripting function, to dynamically select or suppress overlay pages. See the
Scripting reference.
The total number of overlay pages is displayed in the title bar of the Overlays dialog. Use the
OverlayGetNumPages scripting function to dynamically count the pages, see the
Scripting reference.