404 page without group access

Hi! I wanted to restrict our website with groups so that only registered users could access the pages after the login screen… however, if I set a page to have the “registered” group setting, if they’re not logged in, it directs them to a 404 page — this will be confusing for our customers. Is there a way that we can direct them to the login page instead of the 404 page? I have been searching for a way and haven’t found anything. Thank you!