I am looking to solve two issues with displays of key signatures in PrintMusic 2014.5 running on an iMac.

1) when changing key signatures (from 4 flats to 3 flats, for example), the notation replaces the flat on the fourth line of the staff with a natural symbol. How do I get the system to change from 4 flats to 3 flats directly without showing natural changes?

2) when the key change is occurring at the start of a new line, the system is also adding the change to the end of the preceding line. It's a nice head's up feature, but if I don't want it to appear, is there a way to eliminate it?

Art