opened and saved from a file menu
Possibly.

there are a lot of wierd modalities with this kindof thing.

I used to do things this way.

As people get more used to doing stuff on the computer this becomes easier.
For people not used to using macs or computers- hunting for files is a problem.

Ability to send preset/manual change information back to the desk
I looked into this, and we hit a wall- we couldnt find out how to get parameters that were not lighting parameters back to the console using wysiwyg.
frame and play modes - just dissapeared - and noone seemed to know the answer - and how these were supported in hogs.
I do have the wysiwyg midi spec.