# Can this be Done? I don't understand the scope **URL:** \ **Category:** Ignition\ **Created:** [March 11, 2019, 9:57pm UTC](https://forum.inductiveautomation.com/t/can-this-be-done-i-dont-understand-the-scope/23230 "2019-03-11T21:57:25Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dcamp1](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@dcamp1](https://forum.inductiveautomation.com/u/dcamp1)\ **Post date:** [March 11, 2019, 9:57pm UTC](https://forum.inductiveautomation.com/t/can-this-be-done-i-dont-understand-the-scope/23230/1 "2019-03-11T21:57:25Z")
How would I compare the value of a “Numeric Text Field” on windows 1 to the value another “Numeric Text Field” on windows 2. I’m trying to do this with script, but when I look at my Property Reference the other windows components do not show up - so they must be out of scope. Is there a way to do this “Without assigning to TAGS”? Thanks ---
**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 11, 2019, 10:41pm UTC](https://forum.inductiveautomation.com/t/can-this-be-done-i-dont-understand-the-scope/23230/2 "2019-03-11T22:41:01Z")
You can script the lookup of the other window then drill down into its containers on an as-needed basis from one window. If you need to do this on both windows, I would use bidirectionally-bound _ **client** _ tags on both windows. ---
**Author:** ![witman](https://avatars.discourse-cdn.com/v4/letter/w/d2c977/32.png) [@witman](https://forum.inductiveautomation.com/u/witman)\ **Post date:** [March 11, 2019, 11:39pm UTC](https://forum.inductiveautomation.com/t/can-this-be-done-i-dont-understand-the-scope/23230/3 "2019-03-11T23:39:59Z")
> [@pturmel](#): > > You can script the lookup of the other window then drill down into its containers Note this method requires that the other window is open.