Our team is using Jira Classical Software on server, we are planning to add a patch of "Jira nect-gen projects" in or just buy new licence for Jira Next-gen, I heard from my colleague who use Jira Classical on-server version, they have Jira support team helping them to do server setup and provide training for users and if there's any software problem happened they can ask the support team for help, our server version is the latest (2018 Sep version), my questions are:
1. Does our on-server version has the "next-gen project" funtions? If yes, where should I find? If not, how much should we pay for such patch?
2. If we choose to purchase the Jira next-gen cloud-base license, can previous support team also support this next-gen project? Can they also help on problem-solving and software training?