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The TriggerOSCStringParameter option is used to specify which OSC string parameter will trigger the script. The option will only have an effect if the TriggerType is set to OSC.
-- TriggerOSCStringParameter=test
You can use a console, device or application to send OSC messages to trigger scripts in Moving Light Assistant. The text value specified with this option will be the string parameter in an OSC message with the OSC address /mla/script to trigger the script to run within Moving Light Assistant. For example, this could be a useful way to trigger Moving Light Assistant to take a Preset photo.