static [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > MakePrimaryAssetTypeSelector ( [FOnGetPrimaryAssetDisplayText](API\Plugins\AssetManagerEditor\FOnGetPrimaryAssetDisplayText) OnGetDisplayText, [FOnSetPrimaryAssetType](API\Plugins\AssetManagerEditor\FOnSetPrimaryAssetType) OnSetType, bool bAllowClear, bool bAllowAll )