Configuring t1 csu/dsu, questions

I have just installed 2 t1 csu/dsu wics on a cisco 2811, in setup I configured one card with its ip address, but when I configure the other wic , I lose the setting on this first one I configured, why is that?

thanks

I figured it out, helps if I read the screen, selected yes for basic configuration
basic configuration only allow one ip address to be setup