Refactor existing operations

For example the current distributeChain is :
<chain id="DistributionTaskChain">
<operation id="Case.Management.CreateCaseLink" />
<operation id="Case.Management.Step.CaseLink.Mapping">
<param name="actionnable" type="boolean">true</param>
<param name="mappingProperties" type="Properties">
<property key="dc:title">Case:dc:title</property>
<property key="acslk:dueDate">Step:rtsk:dueDate</property>
<property key="acslk:automaticValidation">
Step:rtsk:automaticValidation
</property>
</param>
<param name="leavingChainsProperties" type="Properties">
<property key="validate">validateAndRemoveLink</property>
<property key="refuse">refuseAndRemoveLink</property>
</param>
</operation>
<operation id="Case.Management.Distribution" />

That's difficult to use in studio, a general distributionOperation doing all that it would be nicer.