Configuring static route

Yes, each of the segments are each separate VLANs (192.168.1-4.0/24). I am not multi-homing. I was uncertain about the implications of the "Enable Inter VLAN Routing" checkbox. Is it an all or nothing or does it just allow you to then configure specific routes? For my Internet of Things segment, I was hoping to achieve the equivalent of wireless client isolation for both wireless and wired nodes on that segment (client isolation feature is only for WiFi clients).

Question about your comment ''"Regarding your "internet of things" - there's no way, at a network level. to prevent the individual devices from seeing one another on the network, you'll have to control access on the individual devices, through the use of firewalls or similar.' Is the FVS318N even capable of this? I would think that given the potential risk of putting some vendor's internet enabled black box appliance on your network that could be used as a 'spy or pivot point for network exploitation, isolating their visibility on the network would be desirable. I'm not paranoid because I've seen it done in penetration tests