Ungroup columns in matrix and group them

[poweruser55]

I have a matrix that is populated by Product line. I change product line in the editor so that 

Updated PL = if ([Product Line] in{ "A", "B", "C", } , "Other PL", [Product Line]). How can I alter that forumula so that in my product line fitler it combines A B and C as a column called other PL, but also so that they can be individually selected on the filter. So I want them both separate and combined into a column called other.

[amitchandak · Accepted solution]

@poweruser55 , Use hierarchical slicer -> Drag both Updated PL  and PL