For a shoot-you-up-in-the-air one, do this. I use a switch, because it looks cooler.
Y = Yes, N = No. Or on and off.
First of all, find the onactivate.self.contentstop
Then, do this:
(1500) Oncontentstarted.self.contentstop
(0) Oncontentstopped.namedbrick.seteventenabled (0) (Y)
(150) Oncontentstopped.namedbrick.seteventenabled (0) (N)
Then, on the "namedbrick" brick...
onplayertouch.player.setveloc ity 0 0 100
That should do it. You'll turn the switch on, after 1.5 seconds, it'll turn off