Input and output anchor in filter tool

Question

So I'm in a point where I want to use both input and output anchors in a filter tool, I think.

In a ..big nutshell I want to be able to:
(a) choose the columns I want to filter from, thought a List Box tool (one or more columns of Name 1, Name 2, Name 3)
(b) choose the names in the filter (drop down list, select only one Name, "Maria", "George")

I've managed to do the (b) part but I'm struggling with the (a) part

IDName 1Name 2Name 31MariaMariaPaul2ChristineGeorge[Null]3GeorgePaulChristine

If I choose let's say Columns "Name 1" and "Name 2" the name "Christine" then only row ID 2 should be displayed.

Any thoughts?
Thanks

benakesh · Accepted Answer

Hi @okakosolikos ,

The attached wf has list box for column selection and drop  down for  filtering the name .

The names in selected columns are input to drop down .

Attaching zip as  I can't  attach an app .