You have to create a control with the cluster you want. In this cluster you can name the elements as you want. Save this control as a strict type def. In your VI create a constant from this control. Then use bundle by name and connect the cluster input to this control. Now unbundle by name will display the names.
You can also do the following: Create a cluster constant, place constants of the right type in it. For each element choose "Visible Items >> Label" from the context menu and enter the name. Connect it at as described above.
I prefer the first method because the type def can be used at many places, e. g. as controls and indicators of subVIs. If any change will be nesseccary in the future the "Auto update from Typedef" will change them with
no extra effort in all places.
Waldemar
Using 7.1.1, 8.5.1, 8.6.1, 2009 on XP and RT
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