# I want to open a popup when the value of the Perspective tag is changed

**URL:** <https://forum.inductiveautomation.com/t/i-want-to-open-a-popup-when-the-value-of-the-perspective-tag-is-changed/70878>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [March 10, 2023, 2:45am UTC](https://forum.inductiveautomation.com/t/i-want-to-open-a-popup-when-the-value-of-the-perspective-tag-is-changed/70878 "2023-03-10T02:45:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jiyoung\_hwang1](https://avatars.discourse-cdn.com/v4/letter/j/bc79bd/32.png) [@jiyoung\_hwang1](https://forum.inductiveautomation.com/u/jiyoung_hwang1)\
**Post date:** [March 10, 2023, 2:45am UTC](https://forum.inductiveautomation.com/t/i-want-to-open-a-popup-when-the-value-of-the-perspective-tag-is-changed/70878/1 "2023-03-10T02:45:05Z")

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I want to open a popup when the value of the Perspective tag is changed.

( Tag Type : boolean )

Should I first use the value change script in the tag and secondly add the script to the session event as well?

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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:** [March 10, 2023, 9:01am UTC](https://forum.inductiveautomation.com/t/i-want-to-open-a-popup-when-the-value-of-the-perspective-tag-is-changed/70878/2 "2023-03-10T09:01:30Z")

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Bind the tag to a custom property in the session or view where you want the popup. Add a change script to that property. Do not use a gateway tag change or tag value change for UI operations.

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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:** [March 10, 2023, 12:55pm UTC](https://forum.inductiveautomation.com/t/i-want-to-open-a-popup-when-the-value-of-the-perspective-tag-is-changed/70878/3 "2023-03-10T12:55:07Z")

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> [@Show a popup in perspective on all clients if a value changes](https://forum.inductiveautomation.com/t/show-a-popup-in-perspective-on-all-clients-if-a-value-changes/61133):
>
> In perspective I have a popup page that I want to show up on all screens in the network if a certain tag is set to true. How would I go about doing that and what would that script look like? thank you