This plugin adds a menu entry to create cluster constants directly in icon form. This is especially useful for large nested clusters that take a lot of space and deform your structures before you have a chance to convert them to icons.
array of cluster terminals
nested clusters also get converted
What it does not work on:
the positioning isn't always neat, but it's still way better than a completely deformed structure. I did not want to make any assumptions about exactly where it should be placed and how it should handle complicated or dense locations. It simply creates the constant normally then applies the icon settings.
Attachement is saved in LabVIEW 2015. For install instructions, go here.