Mass addition of proxies

To add a proxy:
- Go to the «Proxy» page
- Click «Import Proxies» at the top right of the screen
- Select the proxy file. The format of the entry must match one of the following:
- protocol://host:port:login:pass:[changeIpEndpoint]
- protocol://host:port:login:pass
- host:port:login:pass
- host:port
- Enter a name prefix to be added to the proxy name.
