I am trying to pass the "group and categorize your data" challenge but as soon as I get to step 7 ("At the bottom of the Preview pane slide the toggle next to Detail Rows and Stacked Summaries to deselect them.") I can only deselect Detail Row toggle but not STacked Summaries one.
I have tried to go on without this step but it won't let me complete the challenge (even if I passed all the other challenges of "Create Reports and Dashboards for Sales and Marketing Managers" project.
Any advice?
