>    [that was not obvious from the documentation on MIDAS wiki, and adding a couple of clarifying 
>     sentences there would go long ways]

I added a sentence there. Please have a look. If you like more info, please write it yourself and send it to me. 
It's always better if that comes from users than from me.

 
> 2. if a script produces an ascii file with a known name, for example, 'a.odb', with the following two lines:

Use $SCRIPT_RESULT as described before.

Best,
Stefan