Changing Columns/Series in Pivot Tables when Filter is changed

I am building a model where when regions will be selected via a filter in a slicer but need it to change which field is brought in depending on which region is selected. For example, when "Region A" is selected via the filter, I want the column/series to change to "Region A Grouping" automatically. Is this possible?

By that, do you mean disappearing/reappearing slicers...based on selection? Don't show "Region A Grouping" all the time; only when "Region A" is selected?

I want the slicer to stay so that you can easily select the region, but I need the column headers in the pivot to change when the region does. So when "Region B" is selected in the filter, "Region B Grouping" shows up in the columns instead of "Region A Grouping" since it would be a pain (and easy for other people looking at the model to make a mistake) to have to change what goes in the column each time.