I have read a lot of stuff, but I feel the common opinion is that this can not be changed, without breaking the links and getting "Not found" error. However, I have read that not having this option for your pages is bad for SEO. I tried the method with adding the .htaccess file in my site's folder, but it did not help. Is there another solution, because I need my permalinks structured that way. I why is this option still available for choice, if it can not work for noobs like me?
Any noob-friendly tips will be appreciated.