Hi Richard,
More feedback from the OU and our use of using CR in assessment :-)
The module chair has passed on comments from markers that, for exams, the 'question author solution' isn't very useful. It apparently takes up a fair bit of space on the marking form, and some markers copy-pasted from that rather than the student answer (in order to give specific feedback). Obviously they realised their error, but it happened a few times.
A very crude mock-up (as usual ;-)).... Currently it appears like this:
And the request is for a button to show/hide the solution on the marking screen, e.g.: