Hi @javiferrer,
Quite a few years ago, I was using the “simple retail menus” plugin.
It created two tables in the wordpress database that then the user could either do entries within the plugin screens or within phpMyAdmin.
Unfortunately, it has not been updated to work with the latest php version and wordpress! – therefore the need to replace it with a new one.
if there were out there, any savvy people who could spend some time updating the code – if at all possible?
Simple Retail Menus was the easiest plugin I have come across.