Show Datasheet Definitions 
- Displays the DataSheet Definitions task pane.
Show Cells 
- Highlights the related object in the tree view for the cell selected in the data
sheet.
Show All Mapped Cells 
- Highlights the mapped cells in the data sheet.
Remove Defined Name 
- Removes the property mapped to the selected cell in the data sheet.
Validate 
- Validates the data sheet for mapping errors.