ask bandwidth management

i am confuse how to set banndwidth for each client in mikrotik, i use mikotik 2.9.2 as bridge and only for bandwidth management, before i use mikrotik i use htb for management bandwidth, in htb i use like this, if some client who definition in rule HTB get 64K, if not in that rule i set 1K, 1K i am definition bandwidth default if thereis no rule match
in mikrotik how to set bandwidth default like that, i should use simple queue or queue tree???

thank you for advice, i am sorry my english poor