It should be posssible to set the pass mark for an exam. this should be updatable from the scores page once an exam has been taken. we should add detials to the candidate table about pass / fail status.

when calculating stats we should be able to exclude users (such as those who have not completed the exam) from the stats calculations. we should be able to do this from the scores page.

when importing multiple cases as a case series from the uploads page the cases are correctly imported and linked, however there is an addition case that is created (and not linked).

when searhing for a case as  part of the case_search_widged we need to show if it is part of a linked case series (and if so its position in the series)