Controlling restrictions on a kid account

Hi,

I have a family group with a kid account. The kid uses an iPod touch. I've got restrictions setup, including a PIN, on the iPod touch. I had assumed I would also be able to control those restrictions from the adult accounts in the family group, but when I go in to the restrictions via the family group on a device using my appleid, it looks like a brand new setup. So - can someone help me understand whether the restrictions are device-only, or are account based across multiple devices? How _should_ I be doing this?

I want to get this right while they have an iPod touch since I suspect that more Apple devices are in their future.

Thanks!

-Jeff