Mirror program

Hi,

What do I have to do in case of need to reflect my mill points, there's a command?

I mean,

let's suppose that for any reason, my program do the next router sequence:

just like number (1)....

But, without changing the coordinates, there is a command to reflect them in such way that my final route become as (2)?

sorry if it's not very clear, english is not my native language...

Thanks in advanced

Good Idea andypugh, maybe that's just what i have to do, if there is no other option...

I will consider it.

Thanks