Random Sleep with Actionaz

Hey

i try to make my own clickbot atm but i have a very big problem.
I cant find the option for a random sleep timer...

is there a option for it?
i want to creat a sleep time wich choose a random number from 25-30min.

Is it so hard to search for "actionaz random" and then save the random value in a variable to use it with the sleep function?