Hello, how are you ? 
I have a few question about my topic, I got task to do. I must do limitation for facebook, torrent and youtube traffic, I try a few scripts from google, but I did not managed anyting 
, Any help ? I understand what I must to do, but I do not have special experience with Mikrotik.
First you should mark all packets from those connections with Firewall Mangle:
http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Mangle
When packets are marked, you can apply queues tree on them:
http://wiki.mikrotik.com/wiki/Manual:Queue
Use PCQ to share bandwidth equally on every host:
http://wiki.mikrotik.com/wiki/Manual:Queues_-_PCQ_Examples
The hardest part here is to catch packets from those connections, because these sites use HTTPs, which is encrypted.
One way is to make /ip firewall address-list and put all IP addresses, that are
used by facebook/gmail.
I know that, but every script what I found, did not works. I will try with IP address, do you have any example ?