# Duplicate Multiple Window Instance

**URL:** <https://forum.inductiveautomation.com/t/duplicate-multiple-window-instance/9806>\
**Category:** Ignition\
**Created:** [March 16, 2015, 8:26pm UTC](https://forum.inductiveautomation.com/t/duplicate-multiple-window-instance/9806 "2015-03-16T20:26:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mpeasley](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@mpeasley](https://forum.inductiveautomation.com/u/mpeasley)\
**Post date:** [March 16, 2015, 8:26pm UTC](https://forum.inductiveautomation.com/t/duplicate-multiple-window-instance/9806/1 "2015-03-16T20:26:15Z")

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I have a tag change script that watches a string tag and on value change I have it open an instance of a window. The windows location is set dynamically and I pass the desired parameters in and they pop up where I need them.

However, If there is a window open in position 1 and the same tag changes while its current instance is up, it creates another instance in the same position and changes the text on both.

Is there a way to open only one instance and have the text change without having another instance open directly on top of it for the same location?

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**Author:** ![nmudge](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nmudge/32/3394_2.png) [@nmudge](https://forum.inductiveautomation.com/u/nmudge)\
**Post date:** [March 16, 2015, 9:03pm UTC](https://forum.inductiveautomation.com/t/duplicate-multiple-window-instance/9806/2 "2015-03-16T21:03:44Z")

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Yes.

You could use system.nav.openWindow instead of system.nav.openWindowInstance.

Best,