Use these options to edit MIDI and audio settings.
MIDI Setup. Choose this command to open the MIDI Setup dialog box where you can edit a number of settings pertaining to your MIDI interface setup.
MIDI Thru. If you prefer to use one keyboard as a controller and another as the sound source, MIDI Thru must be on if you wish to hear notes from one device as you’re entering them on another.
Audio Setup. Choose this command to display the Audio Setup dialog box, where you can configure VST settings.
Rescan for VST Plug-ins. Choose this command to rescan your plug-in directories for any new plug-ins (for example, if a plug-in was added to the directory after PrintMusic was last launched).