[Coco] os9boot file editor?

[Roger Taylor]

Is there an os9boot file editor available anywhere?  I could swear 
back in the day I used use such an editor to hack around with my 
repack system which had the early versions of NitrOS-9 on a 42 megger.

I'd like to be able to edit an os9boot file in place, delete modules 
from it and add others and save without fragmentation if my added 
modules don't cause os9boot to grow larger than it's original size.
-- 
~ Roger Taylor