Dashboard filter refers to more than one field

Hi,
I just got started with building dashboards and dashboard filters with variables and I totally love it. As most of my questions are in SQL I was wondering if one of you has an idea how to do the following:
I would like to have one filter (let’s say a text filter where I enter “Customer 1”) and what would happen in the background code is that the entry would then trigger 3 different fields.

So maybe to explain it better: as our queries are quite complex I have to have three filters: Client List, Client Name, Client Identifier. Right now I have to enter “Customer 1” in each of them, the code is like that:

and p.client_list = {{var1}}
AND c.client_name [[LIKE CONCAT (’%’,{{var2}},’%’)]]
AND p.client_identifier [[LIKE CONCAT (’%’,{{var3}},’%’)]]

The entry in the three filters is exactly the same: “Customer1” and you have to enter it in each filter to get the right result.
Do you have an idea how I could combine that that it shows only one filter in my dashboard? Happy for every suggestion!
Thanks, Eva

Does it work if you just use the same variable for all of them?

and p.client_list = {{var1}}
AND c.client_name [[LIKE CONCAT ('%',{{var1}},'%')]]
AND p.client_identifier [[LIKE CONCAT ('%',{{var1}},'%')]]

Yay that seems to work!! Thanks!