To rename a wallet in Temple, you need to expand the view and click the pencil icon. This will open up a window where you can type in the new wallet name. Once you have typed in the new wallet name, click the 'Save' button to confirm the changes. You can also click the 'Cancel' button if you decide not to rename the wallet. Once you have saved the changes, the wallet will have the new name and the old name will no longer be visible.
