I have a need to create a one to many type of field. We want to use JIRA to track Problem Logs, just like it is supposed to do. I want the developer to be able to add the modules that were fixed for the issue. There could be many of these for each issue. There doesn't appear to be any custom field of this type to add. It is almost like the comments and worklog, where you log that in a hangoff table in order to preserve the one to many aspect of it. This custom field type would probably get stored in the same table as comments and worklogs.