While ingame, type the following into your chat:
Code:
/run MAX_CRITERIA_PER_ACHIEVEMENT=10
Change the 10 to however many lines you want to show per achievement. You can either do this every time you login and after a reload, or you can go to
http://addon.bool.no and make an addon with the following code:
Code:
local f=CreateFrame('frame')
f:RegisterEvent('PLAYER_LOGIN')
f:SetScript('OnEvent',function()
MAX_CRITERIA_PER_ACHIEVEMENT=10
end)