When you work in the Journey builder creating a new Journey, or want to do changes in an older one, the change you find necessary to do often is actually in an Audience used in the Journey. In other cases you need to check an Audience you have used. Today you need to go out of the Journey builder and find the wanted Audience in the Audience overview. In the Journey builder interface where you select Audiences to use, it would have been nice it you actually could go directly to the Audience and open it from this page/view. It is a little misleading that you have a edit button there, but the only ting that happens is that you open a popup with the total number of Audiences you can select from. You dont find the one that is selected directly and you cant open it to edit on it. That would be a way more helpful feature - open and edit the already selected Audience, directly from the Journey builder interface.
