I read in the FAQ that we can only reserve one session at a time, but curious if that applies to training events. I am at a partner company and have an event coming up at the end of the month to train internal users on some automation techniques for approximately 40 users. I would like to use the SD-WAN reservable sandbox for this. Is it possible to use this as a training platform in this way? I already have a reservation at dcloud, but would prefer DevNet Sandbox as it would bring more awareness to this platform.