Locating Express VI Components

I created several express Vi to control devices on a bench test.

These express Vi allow to easy program the device. ( power supply, oscilloscope, generator .... )

When i modify the source code or the config code of the express vi, the modification is not deployed in my Labview program.

My Labview program keep the previous version of the express VI.

In this NI help lavbiew 2016 document :

https://zone.ni.com/reference/en-XX/help/371361N-01/lvconcepts/express_vi_location/

We can read :

"When you save a VI that contains an Express VI, LabVIEW saves the Express VI inside the VI. When you open the VI, the Express VIs within it load from the same file as the VI and not from the source VI file of the Express VI. Therefore, you must place all the functionality of the Express VI in a subVI that you can update as necessary."

Do you have an example ?