How to find two strings with same MD5?

[touvlo2000]

I have a string with a MD5 hash (for example, string="hello" and hash="5d41402abc4b2a76b9719d911017c592"), and I want to find another string that has the same hash as the first one. I am using the hashcat-gui version, but I don't know how to make the program perform this task.

Any help would be appreciated. Thanks