I have several events in google analytics and they are displayed on a dashboard in DataStudio. I have created a new flow on my application that has the same events as a previous flow, but I would like to distinguish which events were generated in one flow vs the other. So, I created a custom dimension (flow) that I can associate with all my events Flow 1 and Flow 2. That works fine. The problem is that if I add a filter on data studio with this custom dimension, there is not a way to assume that all the events without this dimension are flow 1.
I know that I cannot update past analytics data, but is there a way to when I click on the filter Flow 1 it filters by both Flow 1 + everything without this dimension?
