Try:
Looks about right? The 300 multiplier dictates how far up it goes from the starting point. Here it’s 3 meters. It waits for 1s, goes up over 1s, waits for 1s, goes down over 1s, waits 1s. Or something like that. Play with the points on the TL to alter the behaviour.
You can breathe some life into it quite easily:
Good luck!