Document voltage and current probes

[k4kfh]

I realized there's nowhere in the documentation discussing the difference between voltage and current probes placed on the schematic, vs directly measuring the node voltages. I'm not sure if there is a way to directly measure a device current and include it in a graph (diagram).

Need to write a page or so on these tools, and how to choose between the different methods of accessing the current/voltage/power measurements in a circuit. The existing documentation does a good job of covering the different simulation steps, but leaves out this crucial step of how to access the data from the simulations.