I'm looking at putting in Layer7 protocol for P2P blocking. The Mikrotik post (https://wiki.mikrotik.com/wiki/Basic_tr ... _protocols) has a good example\template. is there anything specific I will need to add/modify to make this work on my system?

Also on my running system I have a line I don't understand:
/ ip firewall layer7-protocol
add name=WB regexp="/\\.\\./\\.\\./?\"

is it just saying that this is where you put the text of the Layer7 protocol?