Use a self-Switch.
All you need to do is turn the self-switch A on at the very end of the event you want run. Then make a new page, and where you see the conditions box in the Upper left corner, click Self-Switch A.
You can use any of the 4 self-switches A,B,C,D, but make sure that the one you turn on and the one in the conditions are the same. If you need more details hunt down Zeriab's signature and follow the link to an excellent tutorial. We also have a few good ones in our Tutorial Database.