Apple Logic Pro 9 - Manual (Page 821)

A dialog asks if you want to convert, or “copy and convert,” the source parameter data
into automation data for the destination parameter. The “copy and convert” option results
in the source parameter automation data being retained, and replicated for the destination
parameter.
You can use the Automation Curve tool to bend the line between two nodes, or any
selection.
Automation Curve tool
To bend an automation line
µ
Drag an automation line with the Automation Curve tool.
Tip: This function is also available when using the standard Pointer tool, by pressing
Control-Shift.
Editing Track Automation Data in the Track Header
You can use the Pointer tool to adjust the track automation data for an entire automation
lane in one go.
Note: If the track is part of a track group, and if the relevant checkboxes are selected in
the Group Settings window (volume, pan, sends), track automation data across all tracks
in the group will adjust accordingly. However, the relative parameter values of each track
are maintained.
821 Chapter 28 Working with Automation