Does this MultiVoIP support a hunt group feature?

Yes, it supports hunting.

With firmware versions prior to 4.03 for MVP2400/2410/3010, and 6.03 for MVP210/410/810, hunting is enabled in the inbound phone book. Instead of entering a phone number for each channel, you would enter phone number 101 for channel 0. Anytime the remote dials 101, it will hunt on all channels.

With firmware versions 4.03 for MVP2400/2410/3010, and 6.03 for MVP210/410/810 and newer, there is a selection labed "Hunting" in the inbound phone book entry.