[Pharo-project] adding a method category in OB

Hi, I am working in the OB browser that ships with the Pharo 1.1 RC4, and I cannot add a new method category. The problem is that when I say I want to add a category, I can only choose from the existing ones (see the attached picture). Can anyone reproduce this bug? Doru -- www.tudorgirba.com "From an abstract enough point of view, any two things are similar."