With index card projects, this property specifies the minimum number of pages that are to be printed automatically. For example, if you want to output a four-page form with different layouts for each of the four pages, you create a layer for each page and position the objects on these layers as required for the output. Specify "4" as the minimum page count.
With list projects, the number entered here determines the page number on which the output of the table/report container will start. For example, if you need a covering sheet, you can assign the "Following pages" layer to the table and design the "First page" layer as you wish. Then specify "2" as the minimum page count.