Filter Using Attributes [DMR]

[delight]

hello everyone

I'm working with Cognos 8.2 BI Analysis Studio using DMR.
I'd like to filter a member set by attributes, but when I do it - I see only numeric attributes.

Example:

Time Dimension has 2 levels:
    YEAR
       year id      - business key         [int]
       year name - membercaption      [char]
    QUATER
       quater id      - business key         [int]
       quater name - membercaption      [char]
       quater number                           [int]
       quater category                         [char]

When I try to filter Quater Members I see only quater number as attributes, but I don't see quater category  >:(


Any Ideas? Please help  :)