You can delete individual automation points, multiple automation points, or use a number of commands to delete automation across tracks.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, the commands to delete automation are available.
With Logic Pro in automation mode, do one of the following:
Double-click the automation point.
Select the automation point, then press Delete.
Drag across the automation point with the Eraser tool.
With Logic Pro in automation mode, select multiple automation points with the Pointer, Automation Select, or Marquee tool, then press Delete.
In Logic Pro, choose one of the following options from Mix > Delete Automation:
Delete Visible Automation on Selected Track: Removes automation for the active automation parameter.
Delete All Automation on Selected Track: Removes all automation from the selected track.
Delete Orphaned Automation on Selected Track: Removes all orphaned automation from the selected track. Automation can become orphaned when copied between tracks.
Delete Redundant Automation Points: Removes all redundant automation points on all regions and tracks.
Delete All Track Automation: Removes all automation from all tracks.
Note: You can also use key commands for all the delete commands in the Mix menu except Delete All Track Automation.