Can I use it with multi parameters?

[macduong]

Thank you for creating this tool. I tried to use it but I don't know if it can be used with multiple paremeters instead of one.
If it can, can you tell me how to use it? Thank you.
For example, my link is: http://www.14hour.tk/xmli_2.php?genre=action&action=search
So, URL is: /www.14hour.tk/xmli_2.php
And I have 2 parameters here: genre and action
I tried to insert just 1 parameter to check if this site had XPath vulnerabilities but it said no (although it surely had).
Thank you again.