setting download and upload limit limit above 2m

Hi

I have a rb1000 and am looking to be able to set download and upload limits. So I go into winbox Queues …add…new Simple Queue… however the max limit i can set is 2m or unlimited i need to be able to set a 4m and a 6m limit…can this be done? and if so do I have to use the serial interface to do it?

Thanks in advance for your time it is appreciated.

You can write any value you need in those configuration fields.