Adding Installment Option Using Select Box


i want to add some extra field called “installment” if create product looks like this :

The default is No, but if Yes is selected it will show checkboxes with installment variant looks like this :

My question is :

  1. Im trying to approach it but lack of clue, like using a onchange function or smarty function itself (i’m beginner on smarty template), maybe there’s any functions that i dont know?

    2.Im want to make payment option for every product with full or installment condition, so i can parse the installment condition to payment gateway (because it’s a mandatory fields), is that possible?

    can somebody help me? i’m really appreciate

    Notes : if any of you can do it by custom development, please offer me a price i will consider it

even if you add selectbox, it won't work without extra payment integration and checkout customization

our specialists will be glad to assist you

Feel free to contact us if you still need assistance with this modification

Hi there

have a look at this post