For the end zone play, it is similar to how we play the vertical stack. Except that the space we have is smaller.
We would look to have number 6 running towards the open side and 3 going towards the break side. Depending on who is more open, 1 will make the throw.
In the event that the throw is unable to come out, it is very important for 3 and 6 to move back into the stack as fast as possible, if not they would take up whatever space that the end zone has. At this point, 1 will have to look for 2 and if possible, try to get this pass out.
5 will then cut to the breakside for the score.