**Feature Request**
Please consider adding Y-axis waveform plot zoom handles like those already on the X-axis.
This would make viewing waveform traces where small signals are made too small to see in the full plot by larger signals.
An example of this is the small ripple in the output voltage due to the 1A load current pulse before the big voltage swing due to the output short circuit in this sim:
https://easyeda.com/file_view_LM317-3-Terminal-Adjustable-Positive-Voltage-Regulator-spice-simulation_urlDVd7pH.htm
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
