Can i modify hashcat to make it generate random instead of all possible combination?

[dtoan140298]

https://hashcat.net/wiki/doku.php?id=mask_attack

That works the same way like brute force. If i have 3 types of charsets in 10 differnent location, i have to try 3^10 = 59049 cases. It's random so we don't know which charsets in which location