请教大家：我的485 receipt notice上有这么一段话。

刚收到485的recipt notice，上面有这么一段话：

As a reminder, you may request to change employers under INA 204(j) if your
Form I-485 Adjustment application has been pending for at least 180 days and
your underlying Form I-140 is approved or is still pending. In order to do
so, you should supplement the Form I-485 record of proceeding with
documentation relating to the new job offer that forms the basis of the INA
204(j) protability request.

我的类别是Eb1A，为什么也有这么一段话？请问最近递485的Eb1A们，你们的receipt notice上有这么一段话吗？

我究竟可不可以在180天内换工作啊？我现在的工作很快要没了，必须找新工作，等不及485批了。

谢谢大家！