Sorry for the delay I'm answering to you.
I have reviewed your question and in order to provide you a detailed answer I have created, under our Confluence Documentation Space, a new page illustrating 'Multi-User Approval'.
If you are still interested on it, please, follow the link reported below: https://chicago.herzum.com/confluence/display/HAP/Multi-User+Approval
Contact us for any further doubt and request.
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