virtual bool RequestVariableDropOnNode ( [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * InGraph, [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * InVariableToDrop, [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * InNode, const FVector2D & InDropPosition, const FVector2D & InScreenPosition )