Version: 2021.1
public Object[] targets ;

説明

複数選択された場合のターゲットとなるオブジェクト群

For editors that support multi-object editing, you can use the targets property in OnInspectorGUI. However, it is better to use the serializedObject, as described on the page about the Editor class.

関連項目: serializedObjectEditor クラス。