ok lets see if i can help a little better..
once tops grow above the screen, you want to push the tops back down and over to the next hole..to grow the plant outwards instead of up. Continue to do this until the plants stop stretching and start budding and then let the buds grow.
You want to spread out all of the grow tips or budsites to have an even canopy
here is a pic of my two i scrogged right before i flowered them
and towards the end of flowering
hope this clears it up for you