Thank you, that explains why I can't find it. And yes, I am aware how to use "show stack detail" to get more information about what port, but I was looking for the ability to add our own free-form text description.
I am not sure why Ruckus would not allow those ports to be named, but if Ruckus will not do that perhaps the "Name" column can be removed from "show interfaces stack-port"?
It would help if the stack ports were somehow listed as such when doing "show interface brief". Maybe in the name field or the state field? I can understand that some free-form label is not doable, but a system-generated label?