Here's hoping for some advice...

I would like to try and understand what is involved in changing the checkout process to skip the final Confirmation Step 3 of 3. I find this step a little superflous as my customers payments are handled via a Third Party Payment gateway. THerefore they select the payment in Step 2 and click proceed, to then only be presented with Step 3 which just makes them click confirm once again, before they then are transferred to the payment gateway of my PSP.

I would like to skip step 3 as this would make it much more user friendly and less cumbersome for customers, as they've already selected their payments method and entered their shipping details, so therefore I find Step 3 a little redundant and in some instances is a cause to lose conversions.

Any advice from anyone that has done this before would be useful or alternatively some advice on the idea of disabling Step 3 or 3 in checkout process.

Many thanks in advance.