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.
This feature will be added in 1.8.0. You will be able to find the get command parameter with index in the Advanced procedure tab. The index will start with 0 for the first parameter/argument.