Multiple Owners and Users of Tasks

Multiple Owners and Users of Tasks

There must be a way to choose more than one owner or user of the Tasks, Task Lists, Milestones, etc - on a team, sometimes more than one person is responsible.

In the drop down list - you shuld be able to select more than one item/person.

Besides "Owner" , we should have the ability to "assign" tasks to others, but not just 1 or just all or just none - should be able to choose.

Thank you!
B