I was asking this to rule the actual BO connection, itself, out of the picture…;).
The prm file used to have more parameters than the ones, accessable, under the universe. I would have a look at these too.
This post will help with the location, if you do not already know it, of course.
https://bobj-board.org/t/88836
Again, not very documented, I’m afraid 
.
I’m sure the answer lies somewhere, I have suggested, out of ideas now :P.
Mak 1 
(BOB member since 2005-01-06)