Close the switch to start.The simulation may be very unstable in the beginning, but it will settle down. Don't change component values very quickly, or the sim will crash. Don't change any circuit parameters other than load Resistance and Wiper position of feedback resistor, otherwise the simulation will crash (gosh this app can be really annoying at times). Moving components around may crash the simulation (idk why) so avoid doing that. Current limit takes a second to kick in because of all those 100nF caps that EC needs.
