Hi,
It allows to create new actions yes ; but there is a problem in the Mass Action core which do not authorize the system to use tables which are not HikaShop tables.
So, you can't access to the HikaMarket tables in a mass action ; and you need the vendor table.
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.