role level security for corporate (can see everything)

[electrobrit]

I have a report with a table that defines store numbers/store owners and emails. I have created role level security to look up in a table:
in modeliing in desktop I have this-
UPPER([emailaddress1]) = UPPER(USERNAME())
then on the dataset security I've defined the group.

this works great. 
I want to add a role for corporate to basically ignore any role level security as they should be able to view report and see everything. Do I create the role and basically define no DAX expression? or how do I do that?
I saw someone else ask similar and a person said  to do DAX1=1. I have no idea what this means, they didn't elaborate.

[TeigeGao · Accepted solution]

Hi @electrobrit ,

>>Do I create the role and basically define no DAX expression?

We can do that, this role will see all data, then we can add users to this role.

The result will like below:

Best Regards,

Teige