You can This is how to create a Multi-Level Cascade Select custom field for your issues, following this simple steps:
Go to Settings → issues.
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Go to Custom field → click on create → Create custom field.
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Find MLCS (Advanced → Multi-Level Cascading)Cascade Select (multiple selects) in the Advanced list.
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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 context contexts where you need the want to associate the Multi-Level Cascade Select custom field.
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MLCS are now available on any issue
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is now ready to use.
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