Siemens hmi profinet question

Hello, we just got some new equip that uses Siemens profinet protocol. There is one hmi on this system. My question is How would you go about adding another hmi to the same profinet network. I know the ip should be changed on the 2nd hmi. Im thinking that all you would need. Please excuse my ingnorance . Im new to siemens I have 20 years of experience using AB though.Ps there is a Ethernet switch in the op console.

It is stricktly speaking not 'Profinet' but just regular TCP/IP between the panel and the plc.
Yes just a new IP in the same subnet is all that is needed.