Problem solved with the help of Dick, K6KR and John, KU4AF. I would like to share the macros in case others would like to do the same.
Set it up like this in the K3 Utility:
Macro1 SPLIT+2 - SWT13;SWT13;FT1;UPB5;RT0;XT0;SB1;MN110;SWT12;SWH45;MN255;
Macro2 UNSPLIT - FT0;RT0;LN0;SQ000;SB0;MN110;SWT11;SWH45;MN255;
These are for PF1.