Actually though, since you are already in this thread, if you just look at Alexander's example above, that pretty much shows you how you can do what you want. Change the value of your "boolean variable" however you need based on what it is (wire to the terminal, use a local variable/property node, etc...) and then have the "time target" based on the value of your numeric control and wait to go to the next state where you turn the boolean variable off again.
