Yes I grouped them and used transparancies simply as a method of controling their looks. It is an array of clusters, where the cluster provides the channel attributes name, visible and color. I did not use a typedef only because this is a crude proof of concept example and I didnt want to heve to include any subvis or support files. I would howerer suggest using typedefs probably one for the array called ledgend and another for the channel cluster (possible a strict typedef to allow for simple passing of changes in the look of the ledgend).
Paul
