The Custom Grouping function in Explore (Analysis) can be useful for changing how your report is displayed without having to change the data set up or affecting how other reports are displayed. Grouping data is one way it can be used.
Grouping Data
If you have a report containing names that you want to group together for a presentation, say activity data, you can easily group the data types using Custom Grouping. For example, you have the 2016 emissions report grouped by data type:
Follow these steps to group together two or more data types: