Thank you fewi & Feklar....about blocking torrents to be downloaded or blocking websites I've made such a simple rule, I don't even know if it's made right but the truth is - it works! Maybe it needs some tweaking and with your help it will work better and faster.
I still don't know what Src. Address and Dst. Address mean, I put them both
Where should I put the setting that will block .torrent for all (192.168.0.1/24) except my IP, for example 192.168.0.100 ?
Thank you
btw this rule:
/ip firewall filter
add chain=forward connection-bytes=20000000-0 action=drop
...can be made only in console, in Winbox it is gray (disabled) and btw the rule doesn't work I can download files greater than 20MB