Second port and IP address for Fortiportal

I am trying to configure the fortiportal with a secondary IP address and every time I do so, I get the error

"Disabling interface eth1"
after I enter the end command

here is what I input:
fortiportal # conf system interface
(interface)# edit port2
(port2)# set ip (ip address and subnet)

The system already has a primary address and port1 configured with an ip which we use to access through ssh to configure the secondary ip.

What we are trying to do is have a primary IP for one team to use for configuration and a secondary for another to access Fortiportal.
Did anyone have any luck in configuring two IP addresses for Fortiportal?