Select prjHL7V3Inbound_WithSchematron —> cmHl7V3Inbound.
SeeChecking Out the Imported Projects in Sun Adapter for TCP/IP HL7 Tutorial for steps to check out project components.
Double-click cmHL7V3Inbound.
The action displays the screen shown below.

Double-click on the node found between eaHL7V3Inbound and jcdHL7V3Inbound1.
This action opens the properties screen for the Schematron.

Click the ellipses (...) to modify the Properties.