For the time being, you cannot add a specific URL or Path in Patrowl.
If you want to pentest a specific URL, for example : https://dev.patrowl.io/application/test/dev/home/index.php, you just need to add the related FQDN in pentested mod (here dev.patrowl.io), and indicate in asset comment part the full path you want to integrate in our control.
Our Pentester will then know the specific path and configure the automation for you.