Description - It could be helpful the grey grouping box stay at the top of the list of report as a freeze pane, while you scrolling down no matter how far you scroll down.
Why is this feature important to you - We use a lot of reports with more than 200 rows in a report so the option of freeze pane will be helpful in order to see all the time the grouping field instead to insert more columns that difficult navigation in report.
How would you like the feature to work - Enable per default freeze pane of groupings fields in report in order you scrolling down the groupings appear all the time.
Current Behaviour - When you scrolling down in a report of over more than 200 list the groupings fields (see as gray bar at the top of report) disappear when you scrolling down.