Debugging track value of a property label control etc during the runtime of a form

At the moment to check what the value of a control etc is doing the execution the only way is to put a lot of message boxes everywhere with the variable you need to track the value for.

What if we had like other normal development environment an option to add a watch on a field so that we can see how the value is changing during execution. This would help a lot in debugging especially in forms who have been developed by third parties as you wouldn't know exactly how they were developed.

Thanks