Job linking is used when the administrator needs the same crew member to show interest in multiple jobs that are not in a sequential date range or may have different start/end times within a single Job Order.
1. Create the foundation of the Job Order
2. In the Job Reference Number field enter in the same number for all jobs needed for linking 
3. Click Update or Post to save changes
Please note, this is based on the Site Configuration Enable Job Linking feature. Please see the attached video for job linking and from Crew Member side.