Hi again, Andi!
Thanks for your reply! Yes, I guess that the changes were caused by some other error. However, I noticed that loading the library you recommended does not improve anything. So I thought that maybe since I loaded the older Keyswitch dump library and had it installed, I deleted that in the HP-settings and tried to load the recent one you recommended. Strange enough, it didn't got loaded in Finale, even if I followed the instructions carefully. So, now I got only the loaded Keyswitchlibrary for Synchronised SE. Am I doing something wrong here?
EDIT: I followed the instructions for KeySwitch for Finale 2014 and managed to get it back in Finale and I did the similar to the one you recommended and it was loaded too, at least I thing it was. However, when I compare the 2014 version and the (eventually) new one, they are identical or am I wrong?
These are my present settings now: