We are using some experimental features like transactional subprocess and compensation in our projects. We can not design our flows in eclipse designer because of these fatures are not available in the designer yet.
I wonder that Is there any plan to add these features to designer soon (5.11 may be)
For the 5.11 release of the Designer that's certainly possible. Please raise a JIRA for the Designer component and I'll see if it can be added in the 5.11 or that it will be part of the 5.12
