Single button click Checkout

Hi

I want to club all 5 steps of one page checkout, modify few controls and implement single button click checkout. S how do i go about it?

There are some free and paid plugins for one page checkouts if you search extensions. I ended up just building my own single page checkout for my custom application.

This feature shud be inbuilt in nopcommerce. can u suggest free plugins ?

I would also like to have suggestions on a single click plugin. Have been searching a lot but the free ones support old nopcommerce versions and the paid are not especially slick. Probably going to write my own, but would prefer to buy one to save time.

How do i go about rewriting the code ? Appreciate any help.