To add a new watch
If the watch window is not visible, click Watches on the debugger View menu.
Click the New Watch
button on the toolbar.Enter an expression to watch.
Give the watch a label to make it easier to identify them when you have lots of watches.
Click OK.
Tip
You can also use the Ctrl+W keyboard shortcut to create a new watch.
Use the system variables dialog to quickly watch the value of a system variable.
You can also double-click on an empty area of the watch window to create a new watch.