High Anonymity Proxy, Elite proxy

Hello, for not important reasons I wanted to made on MikroTik in Elite Proxy firm for one of browsers on my home computer.
It seems that I cannot do it or it’s not possible to do it on Mikrotik.

The config important for me is: High Anonymity Proxy, Elite proxy
But I will be satisfied with Anonymous Proxy

Does anyone know how to do it? Maybe MT has got some limits and it is not possible to do it?
Going this way, maybe someone has an idea for other device in which config you can do proxy.
Preferably cheap device.

To make my post clear: for example I want to visit the website at home

http://proxy.net.pl/wykrywacz-proxy-15.html
http://www.proxyserverprivacy.com/adv-free-proxy-detector.shtml

And on two different browsers I want to see two different IP and information that I do not use proxy.
Anonymous proxy would be detected there but Elite Proxy wouldn’t.

You will need additional proxy for such setup. Use squid (or anything similar) forward HTTP requests from MikroTik router to squid proxy to get the described options.