Changing Radio Button Selection to Dropdowns

It is possible to change the selection of Shipping Methods and Payment Methods in the checkout process so that they are dropdowns instead of radio buttons?

Yes, you have to edit the views "checkout / payment" and "checkout / shipping" in HikaShop > Display > Views.

Could you please tell me what I need to change? I'm not a programmer unfortunately.

You have to replace the <tr><td> ... and the radio button by a <select> and in the foreach add the options, which are the methods.

It require PHP knowledge.