OPENCART 1.5.6 MOD or MOD rework..

OPENCART MOD or MOD rework.. basically we want to add a new drop down under DATA to add pre-set sizing.. NOT AN OPTION NOT AN ATTRIBUTE.. The same way this plugin adds condition (we are already using this for conditition) [login to view URL] We have the condition plugin if you want to modify it to add / use a new field + name. we want to simply set - SIZES "small / medium / large / xl / random / not applicable" then when adding product data = simply select = then shows on product page this is for opencart 1.5.6.4 We have been developing websites for almost 20 years, we know this isnt a difficult job, which is why we are using it as a tester to see if we can find a new opencart expert to send work too. TO PROVE U HAVE READ AND UNDERSTOOD.. please tell me your fav colour when bidding