Displaying a different axis based on the user values

Hello everyone

I have an axis with Brand and Sub-Brand , some user have acces to multiple brand while some user only have acces to one brand 

I'm trying to display within a bar chart , two different case : 
 - If the user can see more than one brand , i want to display the bar chart on the brand level  with the sub-brand accessible with the drill trought function.

 - If the user can see only one brand , i want to display the bar chart directly on the sub-brand level.

In order to do so , i want to use field parameter wich seems to work when i select the corresponding value within the field parameter filter. 

However when i try to filter my field parameter table using dax i cannot seem to be able to display my second case correctly.

I tried the following : 
 - Using the HASONEVALUE() function to check in wich case my user currently is, and returning a technical value accordingly 
 - Filtering my field parameter table with the technical value : 

Filter display = 

if(HASONEVALUE(User[Brand]),
CALCULATE(COUNTROWS('Paramètre'),'Paramètre'[Value5]=4),
CALCULATE(COUNTROWS('Paramètre'),'Paramètre'[Value5]=3))

Here i wanted to filter my barchart on this measure to only get the corresponding axis within the field parameter table , but i'm stuck on the Brand Level when i try to "view as" one of my user that only has one Brand 

Does anyone know how to do something like this ? Otherwise does anyone knows how to properly filter a field parameter table ? 

Thanks in advance 
Best Regards