The easiest way IMHO would be to cut the line in the middle and then use a biner to connect the 2 pieces back together. I use a "ridge line thingy". You can see how I implemented it in my instructions for the DIY HH clone (link in my signature).
“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."