Once again, implement a custom broker command:
https://manual.zorro-project.com/brokercommand.htm
Quote
4000..5999 char* User supplied command with a text string.
This should not be a problem, since you are implementing the broker plugin.

Here is an example of a plugin with custom broker commands:
https://zorro-project.com/manual/en/kraken.htm

Alternatively, put a "ScriptName" flag in the user field. Here's an example of flags in the User field:
https://github.com/AndrewAMD/SierraChartZorroPlugin

www.vitaltrades.com - andrew@vitaltrades.com