fisrt do DC curave tracing. to plot Id and Vd curve and save the data into say dcTracingDataset.Then use that transistor in HB simulation with a proper bias (u will see the bias point when u plot the load line) put a current probe and a node voltage in this curcuit (for Id and Vd) then plot Id and Vd over the old Id and Vd from dcTracingDataset.
to my knowledge there r 2 kinds of loadlines dc load line and dynamic load line
for the dc load line go to amplifier design guid and use the very first schematic i think it is called DC , GM and power (some thing like this)