How can I block a worklog time if the original estimate field is empty?

[climba]

I would like the system locked the worklog hours in user task if the original field was empty estimated. How can I do this?

[Tarmo Tarmo]

Have you restarted jira after making the changes? Configuration files are only read on jira startup.

[DeepakBhatia]

Thanks, Yes after the JIRA is started, we are able to get some changes. Now the issue is coming is that when we search the issues, we see a maximum of 1000 at a time, but when we download in an excel whatever is the searched number say 2400, we can download all the 2400. Please give any comments. Thanks