LabVIEW provides several options for customizing VIs.

In general, you can access customization settings from File » VI Properties. You can access these same settings by right-clicking the VI icon in the upper-right corner of the front panel or block diagram and selecting VI Properties.

If you want to change subVI settings during a specific call to that subVI, use the SubVI Node Setup dialog box.

You also can set VI properties programmatically.