Thanks SSC, using a ParameterTransformer works:
![](http://kyma.symbolicsound.com/qa/?qa=blob&qa_blobid=12824327578368048012)
Above is a simple example Sound that enables looping of a Sample from a Script. The ParameterTransformer has this in it:
![](http://kyma.symbolicsound.com/qa/?qa=blob&qa_blobid=17977330177473466554)
Things to watch out for - note that "setLoop" starts with a small "s", and "true" starts with a small "t".
Here's the example Sound