Change IP / Mask of one Ethernet Interface

Question

Hello, 
 i would like to change on my ASG 9.703-3 the IP / Mask of one Ethernet DMZ Interface on my Sophos UTM. What would be the preferred way: 
 
 Just Disable the Interface change IP / Mask activate the Interface again? 
 
 Or delete the Interface and add new Interface and set new IP / Mask? 
 
 Thx

dirkkotte · Accepted Answer

simply change the IP/mask settings. 
 i create a temporary interface for management to not have to change the interface i used to connect.