This is a new feature for Recruiteze: Simple Applicant Tracking System.
Here is a the knowledge base article, which shows how to add a new Job Requisition.
The copy from job feature is available only while adding a new Job Requisition. It is the first field in the post job view like shown in the image below.
As shown in the image above, type in the first few letters of the job title you would like to copy from, it will show a list of jobs matching your search. Select the job you would like to copy from the list. It will populate all the fields for the new Job.
With this feature, you can very quickly post new Jobs from an existing Job.
Please let us know if you have any questions about this feature. If you have any feedback/suggestions/requests, please send an email to support at recruiteze dot com.