It is possible to group event data by column in the Event grid in the Events Tab. To group by a particular column the header of a Column is to be dragged above the grid onto the the text that says "Drag and Drop a Column to group by that column". After the header is dragged into the text above the grid the grid is sorted by the column that was dragged.
To ungroup the Event Data in the grid the Column button above the grid is to be dragged back onto the grid. This causes the grid to ungroup the event data in the grid.