I often find myself having to define cluster type def's for use by sub-VI's. On large clusters, the defining can be cumbersome because LabVIEW wants to add a number to controls that you control copy. The smart way to approach this is to control-copy the controls from the original GUI, and drop them directly into the cluster container. Since it is inside the cluster, LabVIEW does not change the name.
DSA is a Pennsylvania-based automation engineering services firm that provides solutions such as process control, simulation and data management for the industrial sector.