I would appreciate the option to limit a container to open only certain websites, while not necessarily limiting all of those websites to open only on that container. That way, I could, for example, have a container for facebook that also contains a gmail account, while still having another container with another gmail account. With this feature, I would still be able to limit this container only to facebook and gmail, while not being forced to limit gmail to that container only. I imagine this feature has already been requested, so I'm only reinforcing the request, if that's the case.