do they offer an export file or how does this system provide your proxies?
Are you sure it is worth using these proxies - you will pay much more for bandwidth than datacenter ones with unlimited bandwidth.Change default DNS Hostname to IP Hostname. Then bellow Proxy list you can choose format you need. Refresh page many times to get different IP Hostnames and create list. As I remember good - they have about 47 of them. Of course leave default Randomize IP - your IP will change on every request.