Thank you for taking the time to watch them.  I really hope you are right. 
Last night she roosted with everyone else so I let her be until 5am when we had our little coconut and massage routine.  I would say her crop was almost empty this morning - just some sludgy stuff right at the bottom which I pummeled around in case that helped to get it moving. 
Again today she sort of relaxed during the massage.  I can highly recommend this as a soothing morning routine to sit in the coop in the dark with a warm and sleepy chicken tucked under one arm while you knead at her crop.  Honestly I am beginning to think this is as much for me as for her!  Maybe I should do this for everyone in the flock in turn!
A couple of other quick updates yesterday she ate a lot - I kept her in the hospital to make sure she ate - beef and mash from commercial feed with cabbage.  She likes the cabbage best and picks it out - but ate a couple of heaped table spoons of that mixture.  This morning when I put her into the hospital bed she tucked in to breakfast immediately even though it is still dark.  Today I am serving scrambled egg with beef cabbage and Kefir (for the probiotics).
I am really, really hoping she will come through this.  I have to go on a business trip next week and I am not sure I can ask the lady who will care for my animals to do this routine so really hoping she is better by the weekend.   
 
 
Finally, ages back 
@Shadrach had mentioned having a headlamp with a red light.  I already used a headlamp so I just filed it away in memory banks.  My old one is still working but is getting to the end of its natural life (already extended with a fair bit of tape) so I splashed out and got a new one with a red light option.  It is a game changer!  The ladies can still see I am there but they are way less disturbed by the red light.
Sorry for long ramble!