# Perspective - Use tag to open popup

**URL:** <https://forum.inductiveautomation.com/t/perspective-use-tag-to-open-popup/100016>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [December 18, 2024, 11:12pm UTC](https://forum.inductiveautomation.com/t/perspective-use-tag-to-open-popup/100016 "2024-12-18T23:12:01Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![ryan.white](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan.white/32/73193_2.png) [@ryan.white](https://forum.inductiveautomation.com/u/ryan.white)\
**Post date:** [December 18, 2024, 11:23pm UTC](https://forum.inductiveautomation.com/t/perspective-use-tag-to-open-popup/100016/7 "2024-12-18T23:23:14Z")

</div>

Post the error as preformatted text to make it easier to read, please see [Wiki - how to post code on this forum](https://forum.inductiveautomation.com/t/wiki-how-to-post-code-on-this-forum/77831).

You need to bind the tag you want to watch/trigger the popup to a custom property on either your perspective session or view, and then use a value changed script on that property to open the popup.

If you bind on the session property, you'll need to use a message handler to send an open window message to the currently open view, which will need to have the associated message handler defined.

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_[View the full topic](https://forum.inductiveautomation.com/t/perspective-use-tag-to-open-popup/100016)._