That is not an existing feature within ePO, nor am I aware of any plans to do that.
Does anyone here agree that this would be a very nice feature? If I'm using policies for applications where I made a copy of the default policies, which contains exclusions that apply to all systems (such as OS exclusions), I have to go through each and every policy to make the change. If I could stack mulitple policies I would just have to update the single default policy and not have to modify each and every policy I have. The product is called ePolicy Orchestrator right? Can we make it easier to manage policies?