Show/Hide Library  Y

Show or Hide the Library panel at the left side of the main window. I *really* need to remember to use this. It is far more convenient than using the Setting menu at the top of channel strips.

Logic Pro Library interface — Apple Support

You can view available patches for the currently selected track, and choose a new patch, in the Library. Categories appear on the left, and patches for the selected category are displayed on the right. You can search for patches, create, save, and delete patches, and choose routing options.

Logic Pro patches overview — Apple Support

A patch contains the instrument, effects, Smart Controls, and routing settings that control the sound of a track. When you choose a patch, those settings are applied to the currently selected track. You can try a different sound for the track by choosing a different patch, as long as the patch is compatible with the track type.

Track Stacks and the Logic Pro Library — Apple Support

The patches available in the Library vary depending on the Track Stack type, and which track in the Track Stack is selected:

  Show/Hide Setting Menu

Adds or removes the Setting menu (pop-up) from the mixer channel strip. You can use the mixer contextual menus to adjust what is shown on the channel strip.

Channel strip controls in Logic Pro — Apple Support

Each channel strip has a set of controls (also called components), which varies according to channel strip type. You can adjust the channel strip volume and pan position, mute and solo channel strips, add and adjust effects, and send the output to auxiliary or output channel strips.

  Delete Channel Strip Setting

Delete the currently selected Channel Strip setting. I’m not sure that I would use this command to maintain my channel strip collection. Permanently deletes the .CST file.

Work with channel strip settings in Logic Pro — Apple Support

Channel strip settings (CST files) are specific to each channel strip type. Instrument channel strips feature a number of instrument settings, separated into instrument, GarageBand, and Jam Pack categories. Audio channel strips offer effect routings optimized for particular instrument, vocal, and other processing tasks. Similarly, output and auxiliary channel strips provide channel strip settings for particular mastering or sweetening processes. For more information on using effects plug-ins, see Overview of plug-ins in Logic Pro.