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You can make your Jira fields do basically anything at any point of time, just add and set up Live Fields configuration and associate it with a project.

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1. Log into your Jira as Admin.
2. Go to Administration > Add-ons > Live Fields.
3. To add a live fields configuration, click Add Live Fields.
   
   
    
4. In the dialog box, fill out the necessary fields:
   1. Enter the configuration name and description.
   2. Select a SIL™ file for the live fields configuration. This is a SIL script that will be executed on every issue page for the associated projects.
   3. Select the necessary projects or project categories to associate with the configuration.
       
   

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