Mixing : Plug-In and Hardware Inserts : The Plug-In Window : Track Controls in the Plug-In Window

Track Controls in the Plug-In Window
Track Selector
Accesses any track in the session except MIDI, VCA, and Video tracks.
Insert Position Selector
Accesses any insert on the current track.
Plug-In Selector
Lets you select any real-time plug-in installed in the Plug-Ins folder (that is created when you install Pro Tools).
Key Input Selector
Lets you select audio on a particular input or bus and route it to trigger the plug-in. This selector only appears on plug-ins that feature side-chain processing. Key inputs are monophonic.
 
MIDI Node Display
Shows MIDI node information for MIDI-enabled plug-ins. MIDI nodes are virtual connections from Pro Tools to software instruments and other MIDI-enabled plug-ins. MIDI nodes are useful for routing multiple MIDI tracks to different channels of a single virtual MIDI device. MIDI node numbers are also displayed in a track’s MIDI Output selector. The MIDI node indicator only appears in plug-ins that can receive MIDI.
 
Preset Controls in the Plug-In Window
Plug-In Settings Menu
Lets you copy, paste, save, and import plug-in settings.
Plug-In Librarian Menu
Recalls plug-in presets (plug-in settings files saved in the plug-in’s root settings folder or in the current session’s Settings folder). See Plug-In Presets.
Next (+) and Previous (–) Setting Buttons
Let you select the next or previous preset from the Librarian menu.
*
You will lose the current settings if they are not saved before you use the Next and Previous Setting buttons. Always save your plug-in settings as a preset using the Plug-In Settings menu.
Plug-In Settings Select Button
Accesses the Plug-In Settings dialog, which lists the presets for the selected plug-in. From this list, you can audition and select plug-in presets.
Compare
Toggles between the original saved plug-in settings and any changes you have made to it so you can compare them.