The custom curves window makes it possible to create component curves that are defined once but can be used in multiple audio sources at the same time. The curves that could be created are:

• Custom Rolloff
• Spatial Blend
• Reverb ZoneMix
• Spread

Custom curves can be assigned at the component level using the Custom Curves Type property,

The property options are currently None and Global but a Custom option is expected to be added in future versions