Custom Channels
FumeFX particles support custom channels that user can assign to individual particles.
Right click over the Custom Channels rollout area for a menu to add or delete group.
Double click on the channel name (Channel 1) to change the name of the custom channel.
Add Channel - This will create a new particle channel and open its parameters in the Attribute panel. User can assign a unique name to the channel and also must choose the channel data type. This channel will be automatically added to the get part group and set part group nodes as shown on the image below.
Note: Custom channel value must be set for each particle if you want to retrieve its value. In that case where custom channel value is not set and user tries to retrieve it the whole branch executed will be stopped for that particle.