Added rgba to alpha. Some time we need to merge all channels together to alpha. If you select 'rgba' this script will create a expression node, merge all the channel together and convert it to alpha. Output value are clamped.

Added stickyNote function.

Added color scheme for shuffle node now this script change the shuffle node color based on your channel selection.

Added a extra future called "to All channel".

Usually we use shuffle node to extract matte's from ID pass. For to do this we add a shuffle node and select the channel which need to be alpha channel.
 
This script will simplify this work, Its pop-up a panel (window)  called "selectChannel to shuffle" and you should choose your channel and click ok. This script will automatically done the above job. shuffleAlpha script also label the node like (red-->Alpha).