Co-Organizers for GTW Webcast Mode

Hello,

See if I can spell my question out so you can understand. Past Decembers we have many webinars using GTW Webcast Mode the first week of that month. Some of our webinars conflict or overlap. So, in the past I'd create each webinar under one account, then add a second account on those that overlap so that overlapping webinar could be launched from the other account since you can't have two going at the same time from same log in. 

Now when I add the other account, then log in to GTW under that other account, I can't see the webinar in the listing but I need to in order to launch it. I see now when I added that other co organizer account it says "In-session co organizer"     It's been a year since I've done this so maybe I'm just not remembering how to add that co organizer correctly