The array of items to be updated by this action.
The Blend Mode to be set.
Optionalindex: numberAn optional offset to start searching from within the items array. Default 0.
Optionaldirection: numberThe direction to iterate through the array. 1 is from beginning to end, -1 from end to beginning. Default 1.
Takes an array of Game Objects, or any objects that have the public property
blendModeand then sets it to the given value.To use this with a Group:
SetBlendMode(group.getChildren(), value)