Plotting of output responses

I have a PID feedback controller incorporating a load disturbance in the way of a unit step the two step inputs come together through a summing block and then are sent to a workspace.

If i put the step input to 1 on the controller step and the step input to 0 on the distrubance step and plot it i get my output response If i then do the oppposite and plot it i get my disturbance response.

What i would like to do is plot the two responses on the same graph showing them overlapping how do i do this

Answer 1

[Azzi Abdelmalek]

If y1 and y2 are your two output

plot(y1,'r')
hold on
plot(y2,'b')
hold off