Multiple Property First Occurence Filter

Hi,

I had to filter some data with couple of values in 2 properties (or more).
Like molecule A is similar to molecule B: you get A,B and B,A. I wanted to keep only one occurence.

P1 P2
1 2
2 1
5 4

The record (2,1) is going to be removed.

So I created a small component for it, attached to the message.

Some of you may already created one and I'd would happy to share your view on mine (improvements are always welcomed Smiler)
Jeremy