Task module new comment notification

Hi there!
I am trying to figure out how to notify people with who i am sharing a task that there is a new comment.
I was trying to set this by email alert but it seems it’s only possible to notify task owner.
Is there any way to notify them about new comment other than mentioning them by “@name”?

Thanks
Damian

Alternatively you could use assign and it would appear in their To Do list.

Have you checked Email Alerts?

Yes I checked, but there is no recipient option for “shared people”.
Anyway I think it would be a good idea to add something like subscribe button to task.
I am trying to do sth like this with custom fields.

What you mean by “shared people” are you talking about groups?

People I am sharing task with.