How to set the default open items in Eden?

[six_ten 208]

I've successfully modified my configs so my mod assets show up neatly organized in Eden.  One thing I haven't found it how to set the default open items -- I'd like the open item default to be one of my assets instead of NATO men -- how do I do this?

[six_ten 208]

Has anyone discovered a way to do this?   (along with the random start position on the map (which I think I read is going to be changed in an update)) this is one of the few things that I don't like about 3Den.