To modify the variable on Y axis or add a measurement for different unit, go to Plot -> Add Y axis
When you add a new Y-axis, the tool automatically detects if the plotted trace is voltage, current or power and accordingly modifies the Y settings.
You need to select a particular Y- axis before adding the trace. Below plot window shows power (in Watts) and voltage (in volts) added on separate Y axis.
Note- PSpice allows a maximum of three Y-axis at a time in probe window.
Cadence Design Systems
I am using PSPICE for TI to simulate a power supply where I (repeatedly) need to probe voltages in the +/-15V range and currents in the +/-100mA range. When I run a new simulation, all probe values are plotted on a single +/-15 scale. In order to see the current traces, I must first delete the current probes, then create a new y-axis for the +/-100mA range and then recreate the current probes. In such a case, KiCad automatically creates separate, autoscaled left (V) and right (I) y-axes. Isn't there an easier way to handle this in PSPICE?