[CustomEditor(typeof(ScriptableIntVariable))]
[CanEditMultipleObjects]
public abstract class ScriptableIntVariableEditor : Editor
{
    SerializedProperty value;

    void OnEnable()
    {
        value = serializedObject.FindProperty("Inspector_Value");
    }
    public override void OnInspectorGUI()
    {
        serializedObject.Update();
        EditorGUILayout.PropertyField(value, new GUIContent("Value"));
        serializedObject.ApplyModifiedProperties();
        if (targets != null)
            foreach (var x in targets)
            {
                ScriptableIntVariable y = (x as ScriptableIntVariable);
                if (y)
                {
                    y.Value = y.Inspector_Value;
                }
            }
    }
}