The problem with this is that we have to choose in advance which type of object a microflow can receive and we can only send it one object. I've made some changes to this though, so now it always sends the dataview object to the View Change microflow and uses the 'Reference to ViewRender entity' to link the ViewRender object to it. This way you have your dataview context and can just retrieve the ViewRender object from the reference to check the start/end values.
It should be in the App Store later this week.
Thanks a lot!