Report Parameters in Report Builder

Hello

I am not sure to be in the correct forum so please don't hesitate to put this topic somewhere else.

In Report Builder 3.0, when I add a parameter.

Then go to "Report Paramter Properties" --> Available values --> Specify values

I would like to be able to add a value with multiple choice.

I know that I can activate "Allow multiple values" but this is not what I am looking for.

I want to be able to select one unique parameter "Label" that will include several values.

In the fonction I tried:

= value1 , value2, value3

= value1 Or value2 Or value3

It might be a syntax problem

Thank you for your help