# Is there anyway to enable history of a sub tag?

**URL:** <https://forum.inductiveautomation.com/t/is-there-anyway-to-enable-history-of-a-sub-tag/34257>\
**Category:** Ignition\
**Tags:** ignition79, ignition80\
**Created:** [April 28, 2020, 3:57am UTC](https://forum.inductiveautomation.com/t/is-there-anyway-to-enable-history-of-a-sub-tag/34257 "2020-04-28T03:57:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![marcg](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@marcg](https://forum.inductiveautomation.com/u/marcg)\
**Post date:** [April 28, 2020, 3:57am UTC](https://forum.inductiveautomation.com/t/is-there-anyway-to-enable-history-of-a-sub-tag/34257/1 "2020-04-28T03:57:40Z")

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Is there anyway to enable history of a sub tag? example the eng.high

![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/b11a3984895aa8a5d1b4ed9ed3caae602ecfe4c2.png)

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<div class="post-metadata">

**Author:** ![jonathan.taylor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jonathan.taylor/32/4048_2.png) [@jonathan.taylor](https://forum.inductiveautomation.com/u/jonathan.taylor)\
**Post date:** [April 28, 2020, 2:58pm UTC](https://forum.inductiveautomation.com/t/is-there-anyway-to-enable-history-of-a-sub-tag/34257/2 "2020-04-28T14:58:33Z")

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One way would be to have a separate expression tag with the expression:

```auto
{[.]OriginalTag.EngHigh}

```

Then configure history on the expression tag