how to reset vertical scale

i know i can do “zoom normal” to reset the horizontal magnification, but i can’t reset my vertical scale.
how do i do this?

Windows 7
Audacity 2.0.5
I think i used the exe

Hold the Shift key and click in the vertical indicator bar to the left of the track. Just Clicking alone magnifies.


Or right click on the vertical scale.

Or SHIFT + right-click to reset the range of the vertical scale to 0 Hz to the maximum for the sample rate (so 0 to 22050 Hz for 44100 Hz rate).