Customized role not able to view data in Kibana

Hey, guys

Following the training video of x-pack, I tried to set up my own role/user for reading certain index. I added a new user and tried to assign the "kibana" role to this user along with the customized role, but I can't find the role "kibana", which is different from the video says.

If I just assign my customized role to the user (with privilege all), I still can see nothing in discover. If I tried to execute http query through console tab, I got error like this:
"reason": "action [indices:data/read/search] is unauthorized for user [XXXX]"
here XXXX is the username.

tried many ways but no luck, hope someone can help. I'm using ES/Kibana 5.0.0-alpha3

sorry, I mean the "kibana_user" role, not kibana

Can you share your kibana user role and your customized user roles?

ok, just for everyone to know, have to enable .kibana index access for the role you define, or it doesn't work