Is there a manual from APP?
A complete manual in PDF format is not yet available, but I am working on this with high priority.
Adrie, APP is really simple, just load all your frames, set settings in menus 2)-6) and click on Integrate in 6) and APP will do the rest.
Have a look at this tutorial, it will show you how APP will automatically process multi-filter data including calibration:
Please let me know if you have additional questions,
Main developer of Astro Pixel Processor and owner of Aries Productions