Logics concpet can be a little bit confusing. If you think of a (one) Sound with its (one) setting, Logic differentiates three different Levels. Once you understand that concept, it becomes very easy to stay on top of it.
Basic Concept
Level 1: The Instrument Patch
Think of it as a good old hardware synthesizer with a few knobs. You tweak them until you have created the perfect sound. Now you store that sound internally on your synth and name it "PatchName". Every time yo go back to your synth, you can recall that patch "PatchName" and there it is.
Level 2: Instrument Patch + Edits
If you recalled the patch "PatchName" and turn some of the knobs, the sound will change and it will be different from the original "PatchName" sound. You could save the modified sound again internally and give it a new name or you take a camera and take a picture that shows at what position the knobs are. You name the Picture "PatchName+Edit". Now every time you load the original patch "PatchName" and change the knob position the way you see it on the picture, you will get the same result.
Level 3: Instrument Patch + Edit + Studio Hookup
After you tried the Level 2 recreation you realized that it sounded different than the day before and you realize that yesterday you ran the synth through a distortion stomp box and some reverb unit. So in order to completely recreate the sound you have to recreate the "signal flow", too so you take your camera and take a picture of how you plugged in your synth with all the extras in between. Now you label that picture PatchName+Edit+Studio".
Logic terminology
If you have these 3 Level in mind then you have to just look how it translates into Logic terminology:
Level 1: The Instrument Patch
Those patches for various plugin instruments are stored mostly "outside" of Logic, especially with third party apps. Each Plugin vendor uses their own system how and where to store those patches. In the case of EXS, the patch names (Sampler Instruments) are stored in two Logic directories (in the root and user directory). The little plus sing or the popup menu on the EXS window refers to this Level 1, those are the patch names or "Sampler Instruments"
Level 2: PlugIn Settings
This the the "picture" that Logic takes and stores as a "Plug-In Setting" (extension .pst) with all the current settings of the Plugin. Those setting can be exactly the Patch name if you haven't changed anything, or it could be based on a patch that you modified or even something that is not based on any patch, that you created from scratch.
Level 3: Channel Strip Setting:
This is the "picture" that Logic takes and stores as "Channel Strip Settings (extension .cst). with the complete settings for the plugin and all the additional settings on its Channel Strip.
FIle Locations:
Level 1: The Instrument Patch
As I mentioned the location for the plugin patches vary with different plugin. The EXS requires the following location:
Factory Patches:
/Library/Application Support/Logic/Sampler Instruments/
User Patches
"username"/Library/Application Support/Logic/Sampler Instruments/
Level 2: PlugIn Settings (pst)
Logic throws you a curveball here. If you haven't been aware of (now is the time), Logic uses two kinds of plugins, the AU plugins mostly from external vendors and its "internal" Logic plugins which are technically not AU plugins! So both types have their own location and their own extension
Factory Plugin Settings - AU (.auprest)
/Library/Audio/Presets/
Factory Plugin Setting - Logic internal (pst)
/Library/Application Support/Logic/Plug-In Settings/
User Plugin Settings - AU (.auprest)
"username"/Library/Audio/Presets/
User Plugin Setting - Logic internal (pst)
"username"/Library/Application Support/Logic/Plug-In Settings/
Level 3: Channel strip Settings (cst)
The Channel Strip Settings have also a specialty that each channel strip type (Audio, Software Instrument, Aux) have their own sub folder:
Factory Channel Strip Settings:
/Library/Application Support/Logic/Channel Strip Settings/"channel strip type"/
User Channel Strip Settings
"username"/Library/Application Support/Logic/Channel Strip Settings/"channel strip type"/
Logic GUI:
The last step is to understand how Logic presents those three Levels to you. The most important thing to understand it that the "Library" window displays Plugin Settings and Channel Strip Settings depending on what is selected in the Channel Strip. Also notice that the Library window displays the combined content of root directory and user directory location for that file type.
Level 1: The Instrument Patch
The patch name selection is usually part of the plugin GUI and is pretty much different with every plugin
Level 2: PlugIn Settings
You have to select (click) on the Software Instrument button (input selector) in the Channel Strip so the Library window displays the Plug-In Settings. The button has now a little white border around it. The Plugin WIndow header also has a popup menu to manage the Plugin Settings (Load Settings, Save Settings, etc)
Level 3: Channel Strip Setting:
You have to select (click) on the Channel Strip Settings button (top of the Channel Strip) in the Channel Strip so the Library window displays the Channel Strip Settings. The button has now a little white border around it. The Channel Strip Button functions also as a popup menu (right click) to manage the Channel Strip Settings (Save Channel Strip Settings, etc)
OK, that should give you enough to chew on. With that background info it should also be also easier to understand the manual.
Edgar Rothermich
free Logic Manuals (www.DingDingMusic.com/Manuals)