How can I make a single filter on Google Data Studio for multiple columns which contain dichotomus variable? - google-data-studio

Question

I have a database that looks like this:
Var1
Var2
Tag 1
Tag 2
Local1
V1
0
1
Local2
V2
1
0
Local3
V3
1
0
Local4
V4
0
1
In Google Data Studio Report here; how do I put a single filter box where I can select the tag (title of the column of multiple columns) and only the rows that have a 1 in that rage of columns shows up?
The return of the filter would look like this When the filter selects Tag 1
Var1
Var2
Local2
V2
Local3
V3
And the return would look like this when the filter selects Tag 2
Var1
Var2
Local1
V1
Local4
V4
Sample data is here.

Answer 1

You set up an example for two columns, but in your sample you have many. Therefore, I show how to do it for two columns by selecting a number. But for the real case a parameter with a text list would be more user friendly, so they could see what they are selecting. All columns in the function are queried, so keep the costs for that in mind.
There is the need to use a parameter, lets call it tag_selected.
Create a field tag_filter with the columns you would like to select
case when tag_selected=1 then Anti-Corruption and Integrity
when tag_selected=2 then Audits
else 1
end
Finally create a filter to the table with the condition tag_filter =1