Tooltip was made, but problem with its' disappearance was nor resolved.

Changing of Popup's property StaysOpen to true/false didn't make appropriate events.If I use Property IsOpen it works just for first time. All these attempts could be found in DynamoPopup class. In my opinion creation of bigger left side of popup-window is not right solution. However, I can't suggest anything better except using something like timer.
I think the following two properties are not required. Can we just directly refer to the ```Parameters``` property, and use data binding mechanism to get to the content of ```TypedParameter```? If there are some other means of getting these data displayed on the UI, then we should really not be introducing new things.