working requirment

hi, everyone, i am currently thinking of applying a young mobility scheme under the Tier 5 working Holiday visa. I am not quite sure about the phrase saying that I can work for up to 12 months within the 24 months duration. I want to know am I require to work 12 months or just that i am only allow to work up to 12 months, is there a minium of duration i need to work>? Also, am I allow to study any course within the young mobility scheme visa? Thanks in advance~~

Yes 12 months mean if you get 2 years visa in which 12 months as whole you can do work without any issue.This is what its mean.So must apply.Best of luck.