public Action setCurrentAction(String actionName, String layerName) {
        return setCurrentAction(actionName, layerName, true);
    }
Run an action on specified layer. By default action will loop.

@param actionName The name of the action to run.
@param layerName The layer on which action should run.
@return The action corresponding to the given name.
jme3-core/src/main/java/com/jme3/anim/AnimComposer.java