Transfer on death

Hello,
Does anyone one know if its possible to have a TOD form on a futures account?
My account at IB allows this although i find that most future brokers here in Chicago don't offer this form?
I'm curious if there's a reason for this or its company specific. I've contacted an attorney and they said it needs to be offered by the company? God forbid anything happen to me, i just wanted my future account to have a TOD to avoid hassles of probate for my family.

Thank you
e