There is a bug. When you want to print multiple sheets on one page and you select the customized amount and type in a zero in one of the two fields, the programm will crash when trying to generate the preview. (Version 2021.007.20099) On the older Version (2020.009.20063) of my old computer the programm generates a message, that the value must be between 1 and 99 and there is no crash