The OSC tab appears when the OSC Setup menu item is chosen in the Options menu:
Enable OSC - click on this toggle button to turn on the OSC functionality.
Remote client IP address - the address of the remote device that is running an OSC application.
Remote client port - the port on the remote device that is listening for OSC messages over UDP (User Datagram Protocol).
Gig Performer IP address - the address of the computer on which is Gig Performer running. Configure your remote device to use this IP address to connect to Gig Performer.
Gig Performer listening port - the port on which Gig Performer is listening for incoming OSC messages over UDP (User Datagram Protocol). Note: while listening port in Gig Performer v3 was permanently set to 54344, in Gig Performer v4 you can change this port.
Use Lemur augmented OSC messages - if you are using Lemur or another OSC application that supports scripting, enable this option to cause Gig Performer to transmit parameterized OSC messages. Disable this option if you are using TouchOSC or other applications that are not programmable.
Show MIDI In OSC Patchbay - the idea behind this concept is to leverage applications like MaxMSP to modify incoming MIDI events. So, if the patchbay is enabled, an incoming MIDI message will not be sent out. Instead, it will be wrapped as an OSC message and sent to some remote listener (like MaxMSP, Ableton, or other OSC supporting application). A remote listener application could then examine the incoming message, modify it and/or create new MIDI messages, which would then be wrapped up in OSC and sent back to the MIDI In Block patchbay in Gig Performer which would then extract the MIDI from the OSC wrapper and send it on. Unless you have experience using and configuring OSC in other applications, you should not enable this feature as misconfiguration will cause incoming MIDI events to get lost.
Show Widget Direct Addressable OSC - widget direct OSC enables support for the individual OSC devices which are bound to the specific IP address/port that can be set up for each widget. Refer to the Widget Properties inspector chapter for more details.