How to extend 'Service Tasks' panel in Eclipse-based JBPM editor?

[hoang_to]

There are service tasks communicating with external systems in my JBPM process definitions. I defined those service tasks by editing directly .bpmn files, using <task> elements

{code:xml}
<task name="CallingExternalTask">
   <!-- Define actions here -->
   <iospecification>
       <!-- Define input/output bindings here --->
   </iospecification>
</task>
{code}

Now, i want to inherit the power of drag-n-drop feature in JBPM visual editors. What i have to do to have my CallingExternalTask appeared in 'Service Tasks' panel of JBPM editor in Eclipse?

I guess TODO work cosists of building a 'template' file from my own .bpmn files and put them in appropriated configuration directory but don't know how to do so in detail yet

[hoang_to]

I found solution here

http://docs.jboss.org/jbpm/v5.4/userguide/ch.domain-specific-processes.html

One more intuitive way and less error-prone to define work items (JBPM term for what i was trying to create in this discussion) is to use the web-based designer. I could create new work items without handling configuration files under META-INF (designer tool does this for us)