A video? Not that I'm aware of, it would be too short.
Connect the uCurrent in series with your device using the "Current Input" terminals, so current has to flow from the power source, into the "Current Input +" terminal, out of the "Current Input -" terminal, and then to your load (you could also put the uCurrent on the ground return line if you like), same way you would with any other ammeter. Set the scale where you need it given your load's current draw, turn the uCurrent on, turn your power supply on, and use a DMM to measure the voltage across the "Voltage Output" terminals. The relationship between voltage and current depends on the scale switch (1mV/mA, etc.).