Memebrmacro in 1.4.22

i am runnng asterisk 1.4.22 and i want to use membermacro feature in my queues.conf, but i t seems nnot to work.

i set it like this

membermacro = agent

and in extensions.conf i have a [macro-agent].

if this is not possible in 1.4.22 what is the release that it is possible, 1.4.what ?