Yes it is possible and quite simple.
$client->IncrementAA(AAID)
This will increase the id of the AA by 1 since all AA are completely unique and only given a value of 1.
Example Combat Fury (ID 113) Combat Fury 1 - ID 113, Combat Fury 2 - ID 114, Combat Fury 3 - ID 115
While Combat Fury has a max level of 3, each level is its own unique ID.
Code:
sub EVENT_SAY
{
if($text=~/hail/i)
{
$client->IncrementAA(113);
$client->IncrementAA(114);
$client->IncrementAA(115);
}
}
This would result in Combat Fury being set to 3/3
Hope this helps.