Create a Property Node from the cluster by right clicking on it and navigate to 'Create>>Property Node'. Right click on the node and navigate to 'Properties>>Controls[]'. This will give you an array of references to all the controls inside the cluster.
You can run this into a For Loop and using another property node set to 'Label.Text', you'll get all the labels.
Image is attached for reference.
Ed

Ed Dickens - Certified LabVIEW Architect
Lockheed Martin Space
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.