[Kaz]

anyone can explain what exactly random factor function??

It has to do with all the sleeps in the script.
So whenever there is a pause or wait, even between clicks, it is a fixed wait period.

Random factor essentially adds some randomness to it so it looks more human like and if supercell decides to implement bot detection, this can help avoid it for simple pattern recognition.

So for exemple, wait is 10 seconds and random factor is 0.1.
Then the wait will be something between 9 and 11 seconds.
10 * (1-0.1) and 10 * (1+0.1).

Best not to change that value. I kept it there for debugging purposes but the more I think about it, the more I think we should remove it from the GUI