What other software products are using these shortcuts?
for example, Vegas for the first three of them which is really very usefull.
For others, it is sure that each one has a different combination with some times some coincidences : Nuendo/Cubase has shift/horizontal but alt for vertical function, EnergyXT and Samplitude have horizontal zoom with the control key while the shift key make a vertical zoom on the waveform for Samplitude etc.
So there is no standard and obviously you can choose the ones that you prefer !
It is just a matter of habit…
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