I have a basic circuit with a diode, resistor, and a voltage source. I am getting the following error when trying to change the X Axis variable to Vd (diode voltage): ERROR(ORPROBE-3217): Only 1 expression allowed for the X variable. I have set three different temperatures in Temperature (Sweep). Default variable for X Axis is the voltage source, and when trying to change it to V(D1) which is a diode voltage, it gives the above error. My question is how to get diode characteristic (or any other characteristic) Id=f(Vd) when multiple temperatures are used in the same simulation?