Pause and resume

Good morning all, sorry if iv posted this in the wrong place.

I'm nearing the end of building my parallel port controlcontroller, for a cnc router (using on board port + pci card port),
I'm using the basic brake out boards.

I was looking through YouTube for inspiration as this is my first ever build and my first go at cnc, when searching through some videos I came across this



And I was wondering if it's possible to add something like this to my setup?

I have looked around but I'm not really finding much to be honest any advice would be greatly appreciated 
thanks

Your youtube link is invalid. 
Is this video of mine what you found?


It was based on an example in the Hal examples section here about run/step pause/resume but extended for the flashing lights.. I think if you search for my spaceship plasma thread, it is documented in the first few pages.

Yes that's the one, Thanks I'll have to have a look, sorry to ask but is it overly complicated as I'm quite new to linux iv done bits but I'm still very much a beginner

I just posted in my spaceship build thread so its on top of the pile now