If you need to imposition a large number of pages, you can use the mechanism that duplicates the planned use for more than one sheet. All you need to do is use one of the sheet keys located below the grid of the use. The sheet on which even one of the uses’ is occupied is marked with a bold typeface and the "+" sign. The maximum number of sheets is 10000. Minimum = 1.
The program generates the resulting PDFs with imposition only from those sheets in which even one of the users is occupied. Sheets with all free uses are skipped.
The menu available under the right mouse button allows you to delete empty sheets (inactive), generate an imposition sheet with the image of the active sheet (highlighted in color) and generate imposition sheets of all active sheets outside the marked one.