Please check below animation on how to Zoom in/out the chart
All the items on the left of the screen are for filter, where you can select Category, Subcategory Units an date filters (Yearly, Quarterly and Monthly)
Click on the button Add chart
On the pup-up select the second category you would like to plot and click Done, Click Clear if you wanto remove already plotted second category.
Click on the button Toggle
As the names of the item indicates, you can hide/show the chart description, switch x-Axis from Units to Dates, hide/show chart legend.
Click on the button toggle fullscreen
Which would show the plotted chart in full screen. You can also achieve the samething by double clicking anywhere on the chart
Click on the button 3D
You can enable/disable 3d view and also you can play around with the Alpha, Beta, and Depth values.
Click on the button change chart type
Select the appropriate chart type you would like to view
Click on the button export chart
Select the appropriate type you would like to export chart as.
Click on the button change chart theme
Select the appropriate theme you would like to apply to the chart.