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You can create a subVI from an Express VI configuration. For example, you might want to save the configuration of the Write to Measurement File Express VI for use as a subVI in other VIs you build rather than reconfiguring the Express VI every time.

After you create a VI from an Express VI, you cannot convert the subVI back into an Express VI.

Complete the following steps to create a subVI from an Express VI you configured.

1. Configure the Express VI you want to use as a subVI.
2. Right-click the Express VI and select Open Front Panel from the shortcut menu.
3. Click the Convert button in the warning dialog box. The front panel of the subVI appears.
4. Edit the VI.
5. Select Edit»Make Current Values Default or right-click each control and select Make Current Value Default from the shortcut menu to save the values entered in each control.
6. Save the VI. A new subVI displayed as an expandable node replaces the Express VI on the block diagram.