application control rule question

unknown

In Application recognition & control i created a rule to block certain protocols, and give priority to other protocols. Beside that I wanted to block SMB in my public part of the network (seprarate and isolated VLAN). Nevertheless, application recognition detected "Server Message Block / Win2k+"

So i selected that category to be added to the policy I use for that Wireless network. Unfortunately the UI does not accept the category, as it contains a non-alphabetical character "+". 
Since it is a predefined category, I cannot alter it.

Is there anything I can do to work-around this issue, of should I wait for future firmware upgrades/releases?

(in that case: it would be great if the categories will be displayed in alphabetical order)

Greetings from Holland,

Alexander