changing order of uids

[M. Žádník]

Hi,
please, how to change order of uids
(Please CC me, I'm not on the list. Thanks)

I mean I have a key eg.:
(1) test-01 test-01@foo.com
(2) test-02 test-02@foo.com
(3) test-03 test-03@bar.com

ut I need this order:
(1) test-03 test-03@bar.com
(2) test-01 test-01@foo.com
(3) test-02 test-02@foo.com

I know that it is possible with some hack
(and is planned for next release of gpg as regular option)
(I even did it in past),
but I fool lost the page describing it :-(
Just an URL describing it will be fine.

Thanks for help 
M. Zadnik

-- 
Please CC me, I'm not on the list. Thanks