# CreateOrUpdatePanelParams

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The parameters for creating or updating a panel by using [UiController.createOrUpdatePanel](https://developers.felt.com/js-sdk-api-reference/uicontroller#createorupdatepanel).

## Properties

### panel

> **panel**: [`UIPanelCreateOrUpdate`](https://developers.felt.com/js-sdk-api-reference/ui/uipanelcreateorupdate)

The panel to add.

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### placement?

> `optional` **placement**: { `after`: `string`; } | { `before`: `string`; } | { `at`: `"start"` | `"end"`; }

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### initialPlacement?

> `optional` **initialPlacement**: { `after`: `string`; } | { `before`: `string`; } | { `at`: `"start"` | `"end"`; }

The placement of the panel on the right sidebar stack.

#### Default Value

`{ at: "end" }`