display more information in automation job running

This is from case 01461191 

Hi,
We're developing a automation task, we want to show user some information when the automation task is running, like what exactly it is doing. But we couldn't find an API for that purpose.
We noticed there is an API below, but it only show the message when the task is failed.
//
// Summary:
// Creates an instance with status flag and error message.
//
// Parameters:
// ok:
// Status flag.
//
// errorMessage:
// Error message.
[Dxp.Internal.ApiVersionAttribute("1.0")]
public TaskExecutionStatus(bool ok, string errorMessage);

We want the task to be successful, while still showing some message, and it's better to be shown during the job running.