Hello,
Can you please details what is that requirement ?
HikaSubscription can add or remove users from Joomla user groups depending their subscriptions ; but right now, I don't know what is the SobiPro feature you're talking about nor how to interact with it.
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.