Assignment, DataInputSet and DataOutputSet fields disappeared from Core Properties for Reusable Subprocesses in Kie Workbench webdesigner in version CR.0.0.5. We were previously using version CR.0.0.2, the problem was not present there. The possible workaround presented in https://issues.jboss.org/browse/JBPM-3930 seems not feasible, since the Assignment field is not present, and not just not accessible.
fixed in designer master and 6.0.x branches
Tihomir Surdilovic <tsurdilo> made a comment on jira JBPM-4161 this is added in master branch .
Tihomir Surdilovic <tsurdilo> updated the status of jira JBPM-4161 to Resolved
Assignment, DataInputSet and DataOutputSet fields are present and can be set. Verified on ER6.