kCura has released Relativity Binders, which allows users to organise, annotate and prepare such documents from anywhere at any time. Like everybody else, the decision-making lawyers engaged in discovery / disclosure are not at their desks as they used to be, and need to be able to access eDiscovery data, just as they access email, accounts and other office resources, from wherever they happen to be.

There is a page about Relativity Binders here, including helpful videos which demonstrate the functionality.