How Do I Capture Funds Directly

Hey Team,

Hope you are well!
So my developer has not used Hika too much and can't find the file to edit an issue - please see below

At the moment I have two sites using Hika and PayPal. One of the sites captures the funds after purchase and the funds go directly to my PayPal account.
The other site needs me to "capture funds" from PayPal. I emailed PayPal and this is what I got:
"I have checked the code and it's passing paymentaction=authorization from the redirect file www.kingly-pet.com/products/checkout/step/step-1
Please change it to paymentaction=sale for and immediate capture of the funds.
Your developer will need to change this in the Hikashop payment configuration file."

I showed the above to my developer, but he is still having issues finding where to change this. Can you please shed a little more light on how to do this (I might even be able to do it myself).

Any help would be greatly appreciated.

Cheers,
J.

Gold, thanks!