Can We Edit/delete Fields Of The Quick-Order (Checkout Page) From The Code?

[HH Services Limited]

Prestashop out of the box makes this check out process quite rigid. Can we delere all fields and options mark in red circles in the two snapsots taken by modifing the code? If so how and where?

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Thank you in advance.

 

Edited March 16, 2016 by HHServices (see edit history)

[shacker]

some fields are required for payment options, like paypal.

WIch payment do you have?