# Override a UDT Script?

**URL:** <https://forum.inductiveautomation.com/t/override-a-udt-script/90680>\
**Category:** General Discussion\
**Tags:** scripting\
**Created:** [May 21, 2024, 1:22pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680 "2024-05-21T13:22:20Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![christopher.berg](https://avatars.discourse-cdn.com/v4/letter/c/67e7ee/32.png) [@christopher.berg](https://forum.inductiveautomation.com/u/christopher.berg)\
**Post date:** [May 21, 2024, 1:22pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/1 "2024-05-21T13:22:20Z")

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Is it possible to override the script attached to a tag that's part of a UDT? We have a UDT that's attached to a couple of hundred tags but we have one tag instance that we want to function a bit differently than the others. I thought that, once upon a time, it was a matter of checking or unchecking a box but I'm not seeing any way to do it now.

Thanks in advance!

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**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\
**Post date:** [May 21, 2024, 1:34pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/2 "2024-05-21T13:34:21Z")

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Click the little circle, it turns green when overrode.  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/d/2db6d39fb168b962a59e4d1fc0c7177610cc5a0b.png)

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**Author:** ![djs](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@djs](https://forum.inductiveautomation.com/u/djs)\
**Post date:** [May 21, 2024, 1:36pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/3 "2024-05-21T13:36:19Z")

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> **[UDT Inheritance | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/platform/tags/user-defined-types-udts/udt-inheritance#overriding-properties-of-the-parent-udt)**
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> Once you have a single data type created, it is possible to set up UDT inheritance where data types extend to other data types, to add additional members, or override default values. For example, you can create a new data type and using the...

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**Author:** ![christopher.berg](https://avatars.discourse-cdn.com/v4/letter/c/67e7ee/32.png) [@christopher.berg](https://forum.inductiveautomation.com/u/christopher.berg)\
**Post date:** [May 21, 2024, 1:41pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/4 "2024-05-21T13:41:13Z")

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So simple and so not very obvious. Thanks!

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [May 21, 2024, 1:42pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/5 "2024-05-21T13:42:10Z")

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You don't even have to click it--it should change to overridden when you edit that instance's script.

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**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\
**Post date:** [May 21, 2024, 1:48pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/6 "2024-05-21T13:48:20Z")

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Not for me, it's greyed out until overridden.

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/8/88e2ecf16b459120fc9fd76547c752d291eb86fb.png)

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [May 21, 2024, 1:49pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/7 "2024-05-21T13:49:04Z")

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Huh. I wonder when that changed. (Or maybe I misremembered. I might be getting old. 🙄 )

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**Author:** ![christopher.berg](https://avatars.discourse-cdn.com/v4/letter/c/67e7ee/32.png) [@christopher.berg](https://forum.inductiveautomation.com/u/christopher.berg)\
**Post date:** [May 21, 2024, 2:02pm UTC](https://forum.inductiveautomation.com/t/override-a-udt-script/90680/8 "2024-05-21T14:02:47Z")

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The gray script box is what I was seeing too. Thanks for all of your help everyone!
