Hi,
i read a little and it seems to me that deeper modifications of assign to popup box are not possible. However I need to somehow improve it... The point is - our customer is unable to create any sensible permission schemes due to small amount of projects and the fact that usually whole organization is involved in all of them. As a result there are hundreds of potential assignees in different departments, divisions, and groups... Unfortunately JIRA doesn't let you pick assignable users by groups/roles to which they belong (which would be perfect). Therefore my question is - what would be the best approach in such situation. Is there any sensible way of improving the process of choosing assignee, which would let me avoid doing it only by combobox populated by people from everywhere, while there's only name/email in it...
Any comments/possible approaches/components are welcome 
thank you