rmCloud supports adding custom fields to your requirements.
To access them, go to Jira settings -> Apps -> RMCLOUD -> General Configuration
You’ll see a section that looks like this:
Click “New field” to add a new custom field. Once you create the new field, you’ll see it listed:
New fields will show up at the bottom of the Details section on the detail page:
You'll also see the new field(s) at the bottom of the create/edit requirement modals: