Looks like you are using very old 0in version. I guess this is old version or cloassic version
set_cdc_clock <clock port name> -group <clock group name> -module <module name>
set_cdc_port_domain <port name> -clock <clock group> -module <module name>
In tcl format
netlist clock <clk port name> -group <group name> -module <module name>
netlist port domain <port name> -group <group name> -module <module name>