tcp/ip limits

Can I do with mikorotik something like connlimit in linux?
I mean that I would like to limit tcp/ip connections to 20 per IP.

Best regards
DuDuS

Connlimit is in RouterOS - see connection-limit firewall parameter

I see it in the manual but how do I set it thru WinBox or thru Telnet?

And if it is a pool like say 192.168.1.0/24 will it for EACH ip in the pool or the entire pool as a whole?