I am in the application development area for some years now, but in earlier times I faced some problems like this...
WithWildfire 1 and newer versions I used this to find open edges of a quilt (I don't have the English menues in mind, but it should be something like this):
Insert / Sweep / Surface... then the option "Select boundary" and then select the surface/quilt. Next option is "select loop"; then "from-to" or something like that.
Then Pro/E displays selectable points at the open boundaries.
In Pre-Wildfire versions this could be done with copying composite curves, but this option was gone because of the new selection methods in WF I think....
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