EMC auto restart

I have EMC 2.18 BDI running and I must say this is the best version
of EMC yet! There were many little problems that where fixed and I
just wanted to say good job. I do have one question. How can I get
EMC to automatically run the program when it reaches the end? I know
in Fanuc I could do an M99, I the reason for doing this is that I am
building a machine that is going to cut wood as it is coming out of a
planer (Long story)… If there needs be a new M code I would be
willing to work on writing it. But there may be some simple little
thing that I could do and have it working.

Thank you

Brian