Hi, 
I am working on creating a visual workflow, which is launched via button on oppty record.  When a user clicks the button, a chatter group is created with all deal team members automatically become chatter group members.  Until this step it's working just fine. But my boss asked me to add Oppty description in that pop up screen along with the Chatter group and Group members.  
My question is my flow is based on Oppty team members, how do i pull in one field (oppty descrption) from opportunity object.  I am really stuck.  

Any help is appreciated.