how can make the Name on the credit Card required on PP Pro

Hi there how can we make a required field on paypal pro ( Open cart 1.4.9.2)
Name on the Credit card

we have this fields now ( and I like to add the field name on the credit card )
[ Name on the credit card ]
Card Type:
Card number :
Card Expiry Date:
Card Security Code(CVV2):

and I also like to have some errors if the put the card number or the CVV2 code and they are wrong or empty to to show the error
just like when they put the shipping info if any info is empty it shows the error

something like this
error the card number is not valid please check the card number again
or
error card security code is not valid please check the CVV2 number again

and I like to have all fields on the credit card to be required and all fields to have errors
because now if you let all fields empty and just click confirm order button the please wait message star loading
even know all fields are empty


Any help will do well grateful

Thanks to all the experts who take the time to read this post
God Bless you all.
nice work Opencart team

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