Management of tasks in Planner questions.

1. Is there a way to get email alerts to go to everyone assigned to that particular task, even if 1 or all of the assigned task members haven't commented on the task yet? Quite often our project leader is the first point of contact from external consultants and therefor needs to add comments to tasks updating the assigned task members of any developments. If one or all of the task members haven't previously commented on the task, they won't receive an alert of the comment. This results in the project leader doubling up on their methods of communication to ensure the task members are aware of the comment. If there is a way we could set up the email alerts for the comments to go to everyone that is assigned to that particular task, that would be very helpful in keeping everything streamlined.
2. Is there a way to re-arrange the order of the labels after they have been setup and already have multiple tasks assigned to them? and lastly,
3. Is there a way to set up a default view? ie: upon opening the planner tab (tasks) the default view is set with specific filters & groups?

Thanks in advance

Campbell