There are 2 ways to handle this.
Either by the printer if PCL code then change the pitch size for the printer in 36.13.2. Lookup this start of code and change it
PCL syntax = /027(s#V
/027 is ESCAPE, # is the size
Better to use variables with size as extention:
DEF VAR cSize12 AS CHAR.
cSize12 = CHR(27) + "(s12V".
Use it in per section in sosorp10.p.
Put the size in front of each line or add the value to one of the variables.