Adding Tooltips and Hiding Columns
          All columns display by default when you drag them into measures or categories in the Chart Builder.
          
          
         
         
          The tooltips display:
- The measure name and data for the column
 - The attribute name and value (For example, Revenue of $150,413,715 and Category of Desktops)
 
There are different ways to change the look of tooltips:
- Colors and fonts: Tooltips have a black background with white text. You can change the text.
 - Formatting style for prefixes, suffixes, and decimal precision: 
           
- at the chart level
 - override chart-level settings for individual columns