Is there anyway to change the workspace owner in the free tier of the hosted web app? I signed up for the free tier, invited two of my colleagues and we now want to upgrade to pro (to access the cloud autoscaling service). However, my colleague who has the purchasing power isn't able to access the billing information for the workspace I created. I don't see any way to make him owner/admin. It seems like user group roles may be an enterprise-only feature? Am I missing something or does he need to create a whole separate workspace for us to sign up this way as a team?