You control transposition by adding and editing transposition points in the Transposition track. Working with transposition points is similar to working with automation points in the Tracks area.
Do one of the following:
Click a position in the Transposition track with the Pencil tool.
Hold down Control-Option-Command, click a position in the Transposition track, enter a transposition value in the field, then press Return.
A transposition point is added, set to the value you entered.
Drag the transposition point up or down to a new value.
As you move the transposition point, a help tag appears, showing the current transposition value.
Do one of the following:
Click the transposition point with the Pointer tool, then press the Delete key.
Click the transposition point with the Eraser tool.
Transposition events can be copied using the standard Copy and Paste operations or by dragging them while holding Option.
You can also copy or move multiple transposition events simultaneously, which can be useful for repeated project sections.