In order to do that change without any hack of HikaShop you will have to do that:
Copy the file plugins/hikashoppayment/paypal_end.php to templates/YOUR_TEMPLATE/hikashoppayment/paypal_end.php via FTP.
Edit the file templates/YOUR_TEMPLATE/hikashoppayment/paypal_end.php and change the line:
<form id="hikashop_paypal_form" name="hikashop_paypal_form" action="<?php echo $method->payment_params->url;?>" method="post">
to:
<form id="hikashop_paypal_form" name="hikashop_paypal_form" action="<?php echo $method->payment_params->url;?>" method="post" target="_blank">
HIKASHOP ESSENTIAL 49,95€The basic version. With the main features for a little shop.
HIKAMARKETAdd-on Create a multivendor platform. Enable many vendors on your website.
HIKASERIALAdd-on Sale e-tickets, vouchers, gift certificates, serial numbers and more!
MARKETPLACEPlugins, modules and other kinds of integrations for HikaShop
HIKAAUCTION 40€Add-on Create auctions and let your customers bid for products.
ACCESS THE CHECKOUTClick here to access the payment area
