You can This is how to create a Multi-Level Cascade Select custom field for your issues, by following these simple steps:
Go to Settings → issues.
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Go to Custom field → Create custom field.
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Set a name and, optionally, a description for the new field.
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Select all Choose the screens and contexts for where you want to associate the Multi-Level Cascade Select custom field.
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MLCS are now available on any issueis now ready to use.
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