In NEURON simulator, how do you pan and zoom a plotted graph? How do I zoom in and move around a chart after it has been plotted?
Unintuitive, but it's in the right click > View sub-menu:

Pan/translate:


Right click the chart
View > Translate
Left click drag will pan around the chart


Zoom:


Right click the chart
View > Zoom In/Out
Left click drag horizontally or vertically to zoom the x or y axis


Zoom in on a region:


Right click the chart
View > NewView
Left click on the chart to draw a box
A new window will open, drag the lower-right corner to expand the window