Exclude one visual from drill through

Hi, I need help. 

On page 1 i have infos on a supplier. I have a table with the list of their customers, what they bought and few infos.

On page 2 i've made a customer file with many infos on the client. I have a bar chart that shows how much they spent on each category of product we sell. And another bar chart that shows the average consumption per category of product.

I want to make a drill through button that allows me to select a customer on page 1 and see all their infos on page 2 BUT I want my 2nd bar chart to not be altered by the drill through.

When i try to remove the customer number filter on the 2nde bar chart, it just removes it on the whole page.

My first idea was to just put a png instead of the chart but the problem is, i want to filter this chart by age and by type of contrat, so i cannot use a fixed image.

I really don't see any way around the problem