Arranging : Time, Tempo, Meter, Key, and Chords : Tempo Operations Window : Linear

Linear
The Linear page in the Tempo Operations window lets you create tempos that change evenly over a selected range of time.
 
Advanced
When this option is selected, the selection range changes to the Main Time Scale format, and additional and modified options become available.
Calculate (Advanced Option)
Calculates either the selection end time, the start tempo, or the end tempo.
Selection Start and End
Displays the start and end points for the tempo change in the currently selected Main timebase. When an Edit selection is made, the Start and End fields will display the selection boundaries. Changing start or end values changes the selection range.
End Time (Advanced Option)
Displays the absolute time for the selection end. When the Main Time Scale is set to Bars|Beats, the end time is displayed in the Sub Time Scale. When the Main Time Scale is set to any absolute timebase, the end time is calculated and displayed in Bars|Beats. Changing the end time value causes the tempo to change.
Tempo Start and End
Displays the tempo, in beats per minute (BPM), for the start and end points of the selected range. Changing the tempo causes the end time value to change.
Resolution (Advanced Option)
Lets you select the BPM note value for your tempo setting.
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Selecting “Follow Metronome Click” will set the tempo BPM note value to mirror the click value set in the meter markers.
Density (Advanced Option)
Lets you specify the density of the tempo change events written to the Tempo ruler.
Preserve Tempo after Selection
If selected, the previous tempo setting that was in effect at the selection end point is preserved after the selection. If unselected, the last tempo event created by the tempo operation continues to the end of the session, or until the next tempo event beyond the selected range.