# Edit nested udt parameter - Ignition 7.9.10

**URL:** <https://forum.inductiveautomation.com/t/edit-nested-udt-parameter-ignition-7-9-10/25439>\
**Category:** Ignition\
**Created:** [May 30, 2019, 4:39pm UTC](https://forum.inductiveautomation.com/t/edit-nested-udt-parameter-ignition-7-9-10/25439 "2019-05-30T16:39:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![guipinper](https://avatars.discourse-cdn.com/v4/letter/g/ce73a5/32.png) [@guipinper](https://forum.inductiveautomation.com/u/guipinper)\
**Post date:** [May 30, 2019, 4:39pm UTC](https://forum.inductiveautomation.com/t/edit-nested-udt-parameter-ignition-7-9-10/25439/1 "2019-05-30T16:39:04Z")

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Hi, so I have a script to import PLC channels addresses (stored in a db) into nested udts parameters. For that I use the system.tag.editTag scripting function.  
I manage to get this working in Ignition 7.9.7 by putting the nested udt name in the parameters dictionary key ([http://forum.inductiveautomation.com/t/tag-edittag-sub-udt-parameter/18768](http://forum.inductiveautomation.com/t/tag-edittag-sub-udt-parameter/18768)). But the editTag function doesnt seems to work in this version.

Here’s an simple example of what I’m trying to do:

```auto
udtTag = 'LZ System Test/LN2 Dewar/Valves/6000SV'
childName = 'Valve On Write'
opc_path = 'aPath'
system.tag.editTag(tagPath=udtTag, parameters={childName+"/opc_path":opc_path})

```

FYI: 6000SV is a UDT of the type “Valve” with a ‘Valve On Write’ UDT of the type “Control”  
Is this a possible bug?