What Does the 'No Save Before PSS' mean in Pokèmon XY?

Question

When I went into the settings of my Pokèmon X game, there is a button that says 'Forced Save Before IR' . What does it mean. Is it a way to clone Pokèmon, because I don't think GameFreak wouldn't put a button to clone Pokèmon? Or did they?

{PS:This is my first question:)}

Answer 1

It means if you want to save before you do a trade / battle in the PSS system. That's all.