There are three types of pages in PlanetPress Design: normal pages, overlay pages, and virtual pages.
A normal page is one that can print depending on the conditions you set for that page.
An overlay page is one that you can place either underneath or over top of the contents of another page. A simple example of an overlay that goes under a page is a company logo that appears as a background graphic on all pages of the document.
An overlay page can print only if it is associated with a normal page, and only if the normal page with which it is associated prints. You can have many overlay pages associated with a single page.
In PlanetPress Design, overlay pages are displayed in the Page area in mauve with a yellow border. Mauve and yellow are both defaults, which you can modify in the User Options dialog box. In the Structure area, you can distinguish overlay pages by the horizontal lines that appear inside the page symbol.
When you rename an overlay page associated with a normal page, you break the association between both pages. To fix this, you must recreate the association.
A virtual page is a page you want to execute n-up. N-up means n instances of the page print on a single sheet of paper.
The only time a virtual page executes is when an n-up object executes it. If you have a virtual page in a document, and a no n-up object that executes that virtual page, the virtual page does not execute.
In PlanetPress Design, virtual pages are displayed in the Page area in gray with a yellow border. Gray and yellow are both defaults, which you can modify in the User Options dialog box. In the Structure area, you can distinguish a virtual page by its symbol.