How does scrapebox differentiate between SOCKS proxy and an HTTP proxy

According to

Yes scrapebox can use SOCKS proxies, but you need to append a S to the beginning of each proxy. Like
Would be

However, If I am using the Proxy Harvester, some pages will include both HTTP and SOCKS proxy on the same pages. What should I then do?
1) in the Proxy Harvester view, do I select “Source is a socks source”?
2) Is there an automatic way for Scrapebox to detect SOCKS proxies and amend an S to them?