attack animations 1 & 2

[chaklong]

most models have a few attack animations but i don't know how to change them for example for
http://www.hiveworkshop.com/forums/models-530/ork-pistolboyz-99953/?prev=search=ork&d=list&r=20

it says there are 2 animations. I can only use the first one which is for a ranged attack. How can you get the second one to work??