%First figure
figure(1);
set(1,'units','normalized','position',[0.1 0.2 0.6 0.4]);
plot(rand(1,10));
%Open the seocnd figure;
figure(2);
set(2,'units',get(1,'units'),'position',get(1,'position'));
surf(peaks);
%Give focus back to the first
figure(1);
