[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FAssetEditorToolkit](API\Editor\UnrealEd\Toolkits\FAssetEditorToolkit) > CreateSoundSubmixEditor ( const [EToolkitMode::Type](API\Editor\EditorFramework\Toolkits\EToolkitMode__Type) Mode, const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IToolkitHost](API\Editor\EditorFramework\Toolkits\IToolkitHost) > & InitToolkitHost, [USoundSubmixBase](API\Runtime\Engine\Sound\USoundSubmixBase) * InSoundSubmix )