Apple Soundtrack - Manual (Page 157)

Chapter 9 Working with Automation 157
To change the length of a Timeslice numerically:
1 Click the value slider.
The field becomes a value field, with the current value selected.
2 Type a new value into the field, using appropriate punctuation.
3 Press Tab or Enter to confirm the new value.
To lengthen the Timeslice in increments:
m Click the left arrow to lengthen the beginning of the Timeslice in increments, or click
the right arrow to move the end of the Timeslice in increments.
To lengthen the Timeslice dynamically:
m Click the center area of the field (where the numbers are), then drag left to lengthen
the beginning of the Timeslice, or drag right to lengthen the end of the Timeslice.
For projects using Time-based format, the left and right arrows lengthen the
Timeslice in seconds. For projects using Beats-based format, the arrows lengthen
the Timeslice in beats.