Mountaincow software is Windows software so it requires a Mac Conversion Kit to run on a Mac. This consists of an up-to-date copy of Parallels Desktop for Mac software and a copy of Windows 10. The Parallels software enables you to load and run Windows like an app on your Mac. If you have any difficulty installing Parallels or Windows, please contact Parallels technical support for assistance. Once these are installed you can install PrintingPress onto your Mac and use it like another app.
There are a few key things you need to do when using PrintingPress on a Mac. First you will need to copy all of your fonts from the System/Fonts folder into the Windows\Fonts folder in Windows. You will also need to install your printer directly into Windows by downloading and installing the printer driver.