That's actually just a VI. It resides in the user.lib\_OpenG.lib\3d_dir_buttons\3d_dir_buttons.llb folder. You can do the same by simply creating a VI with your error clusters on it, and place the VI on the palette. You can go farther and put some code in the VI and then place it on the block diagram palette with the "Merge" option set. This way you can drag it onto your block diagram and have a starting code structure. More info can be found in the LabVIEW Help.