This feature is currently in active BETA, avaialble via invitation only. We use the "invitation only" technique so that we can explore any edge cases on a limited scale. Once this feature is ready for prime-time, it will be made available to all organizations we serve.
If you're interesting in joining the BETA program to try new features, including our Live Fundraising, we would love to hear from you. Send us an email explaining your organization and we'll prompty respond with details - firstname.lastname@example.org