Summarize Total toggle on/off

I have a use case, where I want to quickly check Total numbers (her: global, w/w) vs regional numbers (North America, etc.) . To do this, I have created a group. The sum of each group is what I want to see, but the Total is wrong, as it includes double entries (aka North America is part of Global). In this case, I would like to be able to toggle off the total sum at the last line of the table.