Hi Toppin,
A simple script can be:
string strCountry = US; // Set country ( sheet name )
plotxy iy:=[Book1]strCountry$!(1,2) plot:=200 ogl:=[<new template:=LINE12>]; // Plot into graph template LINE12 that is pre-created.
plotxy iy:=[Book2]strCountry$!(1,2) plot:=200 ogl:=1;
layer -g; //Group plots

James