In pdfToolbox 9 Callas has introduced the possibility to define unlimited libraries with collections of profiles, checks, fixups and multiple settings. This allows very easily to combine all definitions for a particular project or customer and save them in an independent way. Changes in one library do not change anything in other libraries. So far so good. It becomes problematic if one uses this feature extensively (like me) and one has to search for a specific definition but cannot remember in which library this was saved.
This problem is now solved with the latest update to Callas pdfToolbox 9.2 with allows to search in all libriaries at once.