Jira bulk change functionality allows you to edit multiple issues at once,
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setting a change risk probability and a change risk consequence for multiple issues during a single bulk operation.
Each bulk operation adds the same field values to all selected tasks. To add different values, perform multiple bulk operations.
Steps
Go to the issue search.
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Run a search to narrow down the results.
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Click "Tools" > Bulk change.
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Select issues by checking the boxes (to select all, check the box at the top of the list).
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Click "Next".
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Select "Edit issues" and click "Next".
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Find the risk field on the list. Select it by checking the box. Select a field value.
You can select and edit multiple fields at the same time.
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Click "Next".
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Review and "Confirm".
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