Hello,
HikaMarket 1.7 do not let vendors create manually orders in the front-end ; it is something that we're working on for future version but it's not yet available.
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.