Edit a watch window block in any of four ways: 
- Double-click the block in the block list. 
 
- Right-click the block in the block list and choose Edit... 
 
- Select the block, then click the Edit Block button. 
 
- Select the block, then on the Block menu, click Edit.. from the main menu. 
 
Any of these methods will bring up a dialog where you can edit your data point.
See also