Nodered IBM Bluemix securing ui dashboard

I deployed a node red starter kits application on ibm cloud and I have problem with securing ui dashboard. I was reading information, how i can make this with node-red-auth and generated the password hash but all of this things dont't work. I dont have any idea how to install node-red-admin in bluemix (I was trying use IBM Could Shell) and generat password hash.
I will be very garteful if you could help me, maby you could give me other solutions how to protect my ui dashboard.