You can use subplots like normal (yay!) I just tried it with a surface plot on the left and a line plot on the right. Here is an example below with a picture of the figure I got too.
(Both of those show up on the same figure)
%Some things to plot
a = [1:3];
b = [1:3];
c = [1 2 3;3 4 3; 3 2 1];
t = 1:.01:10;
y = sin(t);
%Plotting in one figure window
figure
subplot(1,2,1)
surf(a,b,c)
subplot(1,2,2)
plot(t,y)
