Databinding UI
Each bindable property have a button next to the property that allows to define a binding.

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Following items have bindable properties: Behaviors, Widgets, Behavior, Building and BlocksControls
When unbound, clicking the button shows the databinding dialog that allows to link the property to a data source.
The binding dialog shows all matching datatypes in the editor:

When bound, the click on button will break the link between the property and the data source (see hover icon in the image below) allowing the next click to bind the property again.
