I have a problem/question, I want do design a User task with a date form property, is there any way to configure the default value as 4 months from the creation date?? I have been trying the same way as a timer event (ISO 8601) P5M but I haven't achieve it.
The easiest way is to add a simple script or service task before the user task and set a process variable there. Then you can set the default value to this process variable.