For each file in a review, can the number of lines added, deleted, modified be displayed? The Review dashboard shows the # of files and # of comments per review and if you drill down into a review, the dashboards shows the # of comments against each file. Can we get the number of lines churned (added, deleted, modified) per file. Some of our reviews are quite large and if a designer has a couple of minutes free, they would like to "pick" some of the "smaller" files in the review that have a minimal numbers of diffs.
I'm afraid there is nothing built in into Crucible to display such information on a review page. But this kind of information can be easily retrieved using REST API. For example for review https://fisheye2.atlassian.com/cru/CR-9888#CFR-10297 you can hit https://fisheye2.atlassian.com/rest-service/reviews-v1/CR-9888/details.json or https://fisheye2.atlassian.com/rest-service/reviews-v1/CR-9888/details to get the number of changed lines in each review file (check changedLines element). Documentation for this endpoint can be found on https://docs.atlassian.com/fisheye-crucible/latest/wadl/crucible.html page. Would you consider writing a plugin to get this information displayed on the crucible page?
Alternatively you may consider raising a feature request for Crucible in https://jira.atlassian.com/browse/CRUC project, if many customers express interest in such feature we would consider adding this to the Crucible core.
Hope that helps,