With this new system it is no longer possible to make advanced commands like /give because you can no longer use subcommands. I used to make commands like /tp %1 %2 %3 or /give %1 but now all of those advanced options are gone.
MCreator issue tracker has been migrated to GitHub.
Existing tickets have been migrated to GitHub. Please open new tickets on the GitHub tracker instead. If you do not have a GitHub account, all feature requests and bug reports from forums are still considered and checked by the maintainers.