You can’t actually use the Watch window until you are in Break mode.
Break mode is sort of a programmatic limbo: Your program is still active, but
its execution is temporarily suspended while the programmer pokes around. All
your variables retain their values, as do the properties of any objects in your
project. During Break mode, you can inspect any of these values. Remember, however,
that only those variables within the scope of the currently executing code are
available at any given moment.
