I meant that when learning more about Custom Reports, Emre describes “Expressions” as a way to get a subset of the data, based on these such as Ticket Type. That is the reason I searched the forum for “Ticket Lister Expression Ticket Type”.
You went out of your way to point out that if I had teached for “Ticket Lister Filter” I would have found my answer. So my point is that I did not search for Filter because it goes by a different name elsewhere.