Hi,
1. You can add "address custom fields" in the HikaShop backend.
www.hikashop.com/en/support/documentatio...p-field-listing.html
2. Ok
3. As Nicolas said, a screenshot of the option for your filter is required.
4. We have a "remember me" in the login part but not in the registration part because we don't know if the user will be logged just after or not (depending the joomla configuration).
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.