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Go to the Administration page, choose Custom Fields link and add an KCF - Single Autocomplete.
In order to see how you can configure all the options above, check this: Configuration
This custom field can be used for many types of options:
If you go to an issue and try to edit this field, you will see an image like this:
Save the changes and the selected value should appear on the issue screen:
Example for data source
Get Issues
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