[resolved] Starter to Business without losing data

Hello,

I need to upgrade my shop that is created with Starter edition to the Business edition.
How can I safely do that without losing any data (including all of my products and categories, my configurations, but also my custom views, my CSS and JavaScript modifications, my translations, etc.) ?
I read other threads about upgrading and I saw that custom php (from the Display -> Views menu, specifically "end" and "terms"), changed css (frontend_default.css from media/com_hikashop/css) and modified js (hikashop.js from media/com_hikashop/js) were mentioned here - www.hikashop.com/forum/5-support-en-fran...e.html?lang=en#26827 - the thing is, I was modifying files directly (except for php). Will it be OK if I just copy/paste my css code to the backend override? When I change my css from the admin panel, I don't see it in /mytemplate/html/com_hikashop and only my 2 modified php files are there, where is the new css stored?

In general, concerning my files, do I need to make a backup of them manually or do I need to copy/paste my code into the new files?

Thanks in advance.

Thanks for the quick response, I did that and it seems my code works fine once again!