USACoding parameter of the Units element in the GlobalConfig (EdAdmin4 > Applications Configuration > Client applications > UsaCoding) allows to select the units syntax for decimal values.

USACoding=false (default)

When entering pc and cc units, you can use two decimal points:

pc.pt.part_of_pt 

for example, 1.6.734pc = 1 pica, 6 points, 734/1000 of point

cc.dd.part_of_dd 

for example, 1.6.734cc = 1 cicero, 6 didots, 734/1000 of didot

USACoding=true

When USACoding = true, you can use also a shorter and more readable syntax with only one decimal point

pcppt.part_of_pt

for example, 1p6.734 = 1 pica, 6 points, 734/1000 of point

cccdd.part_of_dd

for example, 1c6.734 = 1 cicero, 6 Didots, 734/1000 of Didot

IMPORTANT: To make these changes available to the GN4 users, after you saved the GLOBALCONFIG.XML file and imported it into the database, or after you modified it in EdAdmin4 and saved, recycle the GN4 application pools on all IIS servers and then make all users log out and log back in.