Using AsyncProgressBarTests project:
Progress > Start Async Task
In the Status bar, the main progress shows the message "Doing stuff in update"
Progress > Start Async Custom Remaining Time
In the Status bar, the main progress shows the message "Multiple tasks (2) [x:xx:xx]"
Progress > Start Async Task
In the Status bar, the main progress shows the message "Doing stuff in update [x:xx:xx]"

After displaying a task with a remaining time then all the next tasks will display a remaining time.