How to do to replace a SubVI?

[Giulia]

Suppose I create a VI (main1.vi) that uses a SubVI1. Then, I realize another version of the main VI, main2.vi, which differ from main1 by the fact that it uses SubVI2. I don't want to create a new icon, because there is a slight difference. Just want to associate a new file and make this association valid for main2 only. Is it possible?

[Ray.R]

Yes,

but you have to name SubVI2 differently than SubVI1.
You can open SubVI1 change it and save it as SubVI2. In LV7, it will automatically substitute the sub-vi to SubVI2 in your main2.vi and save your second main2 under a new name (such as main2.vi).. (that part you understood already.. ;o)

-JLV-