Format is tab separated multiply preferences.
Name                          	Value
WindowVisibilities
Open File to be Multiplied	
Activate Multiply:	False
Center X (mm):	0.0
Center Y (mm):	0.0
Number of Columns (integer):	4
Number of Rows (integer):	4
Separation over Extrusion Width (ratio):	15.0
windowPositionMultiply Preferences	600+0
