Thanks - I read through that last night and maybe I'm just not looking in the right place as I don't see anything that looks like that on mine.
I"m going to the cluster, in the top right I have Security, Roles, - select the SSID, highlight the Access rules, edit, select the drop down, and I have bandwidth contract - where I can set downstream and upstream kbps and you enter a number - no checkboxes. I don't see anything where you click on checkboxes for data rates.
Again I could be going to completely the wrong area but I can't think of another place to get to the ssid.