> If I understand right, you want an event to happen if number between 30 to 40 is chosen when calculating a (random?) number between 0 to 100?
from what I understand here in translation , that's it!
For example if you have a variable called "Count" which is set to a some value during the game with different events. And you want to check, if the value is between 30 to 40 during the game.
You can do this with multiple ways, one is to compare the Count variable on every tick to check, is it equal or more than thirty, and add another condition in to that event to see is it equal or less than 40. In there, you can add the actions you need.
Hope this helps!