Accessing restricted page in dev mode, is there a way?

Hi! I’m a newbie in coding here. There’s no way I can really get pass this feature request: Site Members Request: Customizing the Restricted Access Page | Help Center | Wix.com

So, I’m hoping that coding will help. How can I access the dev mode of this restricted page? Sample URL: https://www.DOMAIN.com/en/plans-pricing?appSectionParams={“restrictedPageId”:“lvqmc”}

I only want to link the explore plans button to a page where it will only show 4 plans. Not ALL plans. Please see photo. Thank you :slight_smile:
Screenshot (11)