Page Comparison

...

1. Go to Jira administration > Issues > Fields > Field configurations. For the field config currently used by the "Absences" project click 'Copy'.  
   
2. Change the name and description of a field config copy. Description field may be left empty. Once done, click 'Copy'.
   
   
3. Click 'Configure' for the recently copied field config.
   
4. For Absence Type, Manager/Approver, Start date and End date custom fields, click 'Required'. You may use '⌘ + f' to find the fields easier. 
   
   Once done, you should see 'Required' lozenge right next to the custom fields name. 
   
5. Next, jump to the 'Field configuration schemes' screen and click 'Add field configuration scheme' in the upper right.
   
6. Give it the "Absences" name and click 'Add'. Description field may be left empty.
   
7. Right after, click 'Edit' under Actions.
   
   
   
8. Switch the field configuration to the 'Absences' config created in step (2). Next, click 'Update'. 
   
9. Go back to the "Absences" project settings and jump to the 'Fields' screen.
10. Expand 'Actions' drop-down menu in the upper right and select 'Use a different scheme'.
    
    
    
11. Switch the scheme to the 'Absences' entity added in step (6) and click 'Associate'.  
    
12. As a final result you should see the 'Absences' scheme associated with the "Absences" project. 
    

...