# New parameter added to a view does not propagate to instances of that view in Perspective

**URL:** <https://forum.inductiveautomation.com/t/new-parameter-added-to-a-view-does-not-propagate-to-instances-of-that-view-in-perspective/43262>\
**Category:** Ignition\
**Tags:** perspective, ignition81\
**Created:** [February 10, 2021, 8:34pm UTC](https://forum.inductiveautomation.com/t/new-parameter-added-to-a-view-does-not-propagate-to-instances-of-that-view-in-perspective/43262 "2021-02-10T20:34:08Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![EKraft85](https://avatars.discourse-cdn.com/v4/letter/e/cab0a1/32.png) [@EKraft85](https://forum.inductiveautomation.com/u/EKraft85)\
**Post date:** [September 21, 2021, 10:24am UTC](https://forum.inductiveautomation.com/t/new-parameter-added-to-a-view-does-not-propagate-to-instances-of-that-view-in-perspective/43262/19 "2021-09-21T10:24:07Z")

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Thanks for this feature, @Carl.Gould and @cmallonee . And thanks for the explanation!

I'm finding some problems in the way the 'parameter' list is being populated from the embedded view, however. I've removed some of the parameters, but they are still being shown in the list.

Current parameters:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/6/f69074778f6ba55364f93b31a413fe67fd51e69e.png)

Visible parameters:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/8/b8cc808aadfb5dbf073273eb8e93d8237b924407.png)

Do you have any information on how the list is populated?

Here are other posts related to this problem:

> [@\[BUG\] Deleting a view parameter does not remove it from the sync params operation](https://forum.inductiveautomation.com/t/bug-deleting-a-view-parameter-does-not-remove-it-from-the-sync-params-operation/49678):
>
> As the title describes, if you delete a parameter from a view and then sync params on an embedded view, the embedded view will get the non existent parameter. It shouldn’t cause an issue but it may make a developer paranoid.

> [@Perspective params - problems when deleting/renaming](https://forum.inductiveautomation.com/t/perspective-params-problems-when-deleting-renaming/51107):
>
> I renamed a few parameters in a view which is being embedded elsewhere, and now I’m having all sorts of problems… Parameters are not letting me delete them, automatically changing values, and showing a value different than the value retrieved via bindings. When attempting to use bi-directional params, the binding icons even started showing up in the value entry: Here’s a list of the params as synced by my embedded view: And here are the actual params inside of the view bei…

Thanks for any assistance!

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