Register a subcommand without the base command

Hi, I would like to register a command like this: `myplugin reload`. How can I do that, so it shows in help?
I've tried doing it like this (code is written in Kotlin):
```kotlin
@CommandAlias("myplugin reload")
class MyPluginCommand : BaseCommand() {
@Default
fun onReload(sender: CommandSender) {
// Reload
}
}
```
When I execute `/help NameOfMyPlugin` I get this:
I get autocomplete:
But the command doesn't execute: