Load chart based on Row Level Security

Hello, 

I implemented Row Level Security on my report and I have three main rows. An overall Head, an Area Manager and a Branch Manager. They all use the same dashboard but I want the chart below to change and display based on their roles. Currently it shows only by Areas and users who are not area managers have to drill down to view. I want to remove that extra step as it requires training. 

For instance,

When the branch Manager logs in, they should see the chart showing their branch and not based on zone their branch belongs to.   See below