Power Edit Subform - Function Body



I have a power edit subform that was written by somebody. When I print the ER I see that there is this event below:
EVENTSForm: Label Format Selection - S5642060A
Object: FC Populate Label Format Selection Grid
Event: Function Body
Event GUID: 24f45ace-7685-4b84-bb09-378d3f5bae70

When I look at the FDA, I am unable to find it. Do you know where it would be located?
Its probably a subform function. In FDA, at the bottom of the Form Tree there is a drop down box with Physical Hierarchy selected. Change that to Logical Hierarchy and any subforms with functions will appear. Internal to the object, they are like buttons but they can be called from related forms.