protected override void SetProperties()
{
base.SetProperties();
EditorGUILayout.Space();
EditorExtensions.LabelFieldCustom("Buildable Properties", FontStyle.Bold);
EditorExtensions.ArrayFieldCustom(placeables, true, true, PlaceableField);
EditorGUILayout.PropertyField(validMaterial);
EditorGUILayout.PropertyField(invalidMaterial);
EditorGUILayout.PropertyField(overlapMask);
}