const [TMap](API\Runtime\Core\Containers\TMap)< [ERenderGridPropsSourceType](API\Plugins\RenderGrid\RenderGrid\ERenderGridPropsSourceType), [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IRenderGridPropsSourceWidgetFactory](API\Plugins\RenderGridEditor\Factories\IRenderGridPropsSourceWidgetFact-) > > & GetPropsSourceWidgetFactories() const