Load-Balance Failover with more than 2 interfaces

Hi !

How to make 4 WAN interfaces in Load-Balance Failover ?

If you specify second failover interface it will say:

root@ubnt# set load-balance group VPS interface eth2 failover-only
Error: only 1 load-balance interface can be failover-only for group VPS

I need then to work in exact priority order without load-balance

eth0

eth1

eth2

eth3

Does the STATUS field means anything for Load-balance logic when working in balance (not failover) mode

root@ubnt# run show load-balance status
Group VPS
interface : eth0
carrier : up
status : inactive
route table : 11
weight : 0%
flows
WAN Out : 22
WAN In : 0
Local Out : 15

I mean should LB use the interface for balancing if this interface is in INACTIVE status.

I have just found strange think that LB uses interfaces ignoring there status. Even if it's are INACTIVE.

Is it a bug ?