Open/Close Audio Insert 9 Plug-in Window of focused Track
Toggle the visibility of the window for audio insert in the ninth slot. NB the focused track is
Work in the plug-in window in Logic Pro – Apple Support
In Logic Pro, click the center area of the plug-in slot.
Select tracks in Logic Pro – Apple Support
When multiple tracks are selected, only one can have focus. You can change the focused track while keeping the multiple selection using the track numbers.