CallActivity with in/out parameters: Add sourceExpression and documentation to User Guide

Description

see ACT-560, what is still missing (and I didn't had the time to add it before the code freeze):

  • sourceExpression support

  • User Guide / Documentation for that feature

Assignee

Bernd Ruecker (camunda)

Reporter

Bernd Ruecker (camunda)

Labels

None

Components

Fix versions

Priority

Major
Configure