Hi Guillermo L,
I am not sure about your question about pools and lanes, but the error that you got like:
[-1,-1]: Process 'test' [test]: Process has no start node.
[-1,-1]: Process 'test' [test]: Process has no start node.
[-1,-1]: Process 'test' [test]: Process has no end node.
May be caused by not adding start node and end node properly,
The solution can be to add start node & end node, Or make the process definition ad hoc by adding attribute to process tag ( tns:adHoc="true")
Regards,
Thomas Setiabudi