[CanEditMultipleObjects, CustomEditor(typeof(MyCustomClass), true)]
public class MyCustomEditor : BaseMonoBehaviourEditor
{
    protected override void DrawProperty(Rect position, SerializedProperty property, GUIContent label)
    {
        if (property.name == "m_CanMove")
        {
            // insert custom editor code for this property
        }
        else
        {
             base.DrawProperty(property, label);
        }
    }
}