How to debug variables

Is there a way to see task variable values when running the behavior tree?

If not I'd like to suggest a feature to show the values in the inspector when clicking a task when in play mode. Have a look how Playmaker does this thing. Variable values are visible in the FSM's action when running the FSM.
In case someone else is thinking about this you can observe variable values on runtime by clicking the magnifying glass on the task's inspector.