To choose the data range:
- from menu View choose Range
or
- from context menu choose Range
ranges submenu spreads from where one of the time ranges can be selected
To directly zoom in the graphs:
- From menu View choose Zoom in
or
- push the grey Up (up arrow) key
To directly zoom out the graphs:
- From menu View choose Zoom out
or
- push the grey Down (down arrow) key
