Obviously my question is not new but I didn't really know what to search.
I want to create a product manager in wordpress. ( do not want to use plugins as I want to create my own custom fields)
I once used Posts for this purpose and it was very good with all default and my custom fields. But I was limited to just one page and I didn't know what to do for my news and other stuff. Because of the posts page modifications and custom fields for my products I couldn't use the posts page for news and other.
My question is how can I create a new table in the database and have a menu in the admin page like posts and all it's functionality ? Then I can edit that page for my products without changing the posts page.