logic 11 opening session drummer editor for old projects

I am working on an old project. I updated the drummer track. I saw the editor for a minute when i pressed the E key. Now i cannot find the session drummer editor for my old track. I have midi, scores etc but i can't find the editor anywhere. Updating really screwed up my track. It needs fixing and i need a way to access an editor and figure it out..

I can only find a way to open it for a new track.