How do I create a admin account for Power BI?

Hi Sub，

If you want to administer Power BI, your account needs to be marked as a Global Admin, within Office 365 or Azure Active Directory, or have been assigned the Power BI service administrator role, you can review the following articles about Power BI admins and how to assign Power BI admin role.

https://powerbi.microsoft.com/en-us/documentation/powerbi-admin-administering-power-bi-in-your-organization/
https://powerbi.microsoft.com/en-us/documentation/powerbi-admin-role/

However, if you want to purchase Power BI pro, please review this official article: https://powerbi.microsoft.com/en-us/documentation/powerbi-admin-purchasing-power-bi-pro/ .

In addition, based on your description, you want to control that some users see chart 1 but not chart 2, this scenario is not related to Power BI admin account. You can pin chart 1 to a single dashboard and only share the dashboard to specific users.

Thanks,
Lydia Zhang