The redirection your extension doing (between stores) is using 302, I want to change it to 301, as the image below: 

How can I change it? 


We suggest you should use Redirect 302 as each store view has specific content, so redirect 302 is better for SEO in case you have multiple store views. In addition, you should use this configuration: Restriction User Agent to prevent Google BOT from redirecting to advanced SEO. See the image below:

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