How can I create a widget only on PCscreen in VR

Hello,every friend,I am searching for an answer about how to set my UI only see on PCscreen,not on HMD,I hope UE4 4.17 Sepectator Mode can figure this question,however,it does not work,it drive me mad,I create a widget and add it to viewport,HMD can see this widget,I do not want to make ths widget show on HMD,I just want it show on PCscreen,how should I do ?