How can i add a driver tip in magento onepage checkout process?
Currently i have an requirement of adding a custom Driver tip step in magento onepage checkout process, right after the shipping method(step-3), in which i want user to select tip from some given options(i will make radio buttons), that will contain certain amounts, suppose user selected $150 then this amount will be added into total payment ? i tried all other tutorials over google, none of them is working for me, any help is appreciated, I recently work on similar type of requirement. so follow my instructions:- I request to you that don't focus on the length of answer just focus on the