I want to create a custom field that has picklist values that are the same as the assignee field. How can I get the values to get autogenerated and clone what shows up for assignee field?

[Nic Brough -Adaptavist-]

You can configure standard user-picker fields to follow similar rules as the assignee field does.  Create one and have a look at the configuration after its been created - you should find a way to set up some rules.

See https://confluence.atlassian.com/adminjiracloud/configuring-a-custom-field-776636423.html#Configuringacustomfield-Howtofilterusersforuserpickerfields

[Esther Kim]

when I go to the following

Find the custom field you want to configure and click  > Configure > Edit Options > Edit User Filtering.

I do not see a "Edit User Filtering" option under Edit Options. 

I can only add values manually, no way to set up any rules. How do I find this Edit User Filtering?

I created a custom field called QA Assignee that is a picklist type. I want to be able to pull the same values that are available under the default assignee field as options to set under QA Assignee as well. 

[Nic Brough -Adaptavist-]

It must be a user picker, not a select list or other type of field.