How to create a subprocess in a EPC model? and what is the difference between an EPC model in ARIS and a BPMN model?

I need to create a process with various subprocess indicating in the top, in columns, the area of the organization that it's responsable for the function or event and I don't know what model I need to choose, an EPC model or a BPMN model. Another question is, if it´s possible create subprocess on EPC like in BPMN? or create links to other pages in EPC like the subprocess in BPMN?

Thanks!