Hi,
HikaShop does not have a "partial order status" feature.
But it is something which is in our TODO list, specially for the integration with HikaMarket (in order to have several vendor orders with different statuses).
So for the moment I don't see an easy solution to do it ; it requires some important development to integrate the feature and update the different views/emails.
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.