How to auto populate the values ​​of custom fields based on another custom field value selected? Edited

[Leandro Cantero]

I need to know if there is possible to automatically populate custom fields (Select List - single choice),  based on a previous field value selected (Select List - single choice).

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Remark: Each field has default values and ordered options.

For example:* The custom field "Document" has the options:
- 1
- 2
- 3.
* The custom field "Area" has the options:
- Marketing
- Administration
- Financial.
* The custom field "Execution Priority" has the options:
- Normal
- Critical
- Low.
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*** If I select the FIRST VALUE in the "Document" custom field, the other fields should automatically select the FIRST value:
- Area: Marketing
- Execution Priority: Normal.

*** If I select the SECOND VALUE in the "Document" custom field, the other fields should automatically select the SECOND value:
- Area: Administration
- Execution Priority: Critical.

*** If I select the THIRD VALUE in the "Document" custom field, the other fields should automatically select the THIRD value:
- Area: Financial
- Execution Priority: Low.

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Can someone help me? 

Thank you for your time. 

Kind Regards 

[Szabolcs Kiss]

Hi Leandro,

I think you need additional plugin installed (JMWE or Scriptrunner or...) and you can set a postfunction.