Hello,
In the HikaShop product page you will see some code to display blocks, like :
<?php if(!empty($this->element->extraData->topEnd)) { echo implode("\r\n", $this->element->extraData->topEnd); } ?>
HikaMarket does use that "slot" to add its content dynamically in the product page.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.