Updating the "VI Connector" to some higher number of connectors should automatically update in all files of the project.

[Ajay_MV]

I feel like frustrated when there is a lack of connector in the existing VI and need more.  Because, when I update it to new pattern as shown below, I need to update the VI's instance in all other VIs in the project.  Since I am updating the pattern from lower number of connectors to the higher number of connectors, it would be better if all the instances in other VIs get updated automatically.

[Ken_Naylor]

You don't have to delete the faded VI, add the new one and rewire.  Have you tried 'Right Click' on the faded VI and selecting 'Relink to sub VI' ?  Granted you still have to do this for every instance but it is quicker.

Ken

[X.]

You mean like a "relink" to modified subVIs (which currently only works for a single new subVI that you are modifying before you save it)?

I have been told by an NI employee on another forum that this is not the way LV is designed. So I'd say, sure, more power to the user...

PS: in you example, there are no broken wires. The situation is much worse when that happens...

PPS: You may want to check this related idea about modifying subVIs...

[Ajay_MV]

Ken.

     I tried the relink feature.  But, still I feel like this automatic relinking is a good one.  Consider, I used a subVI in more than 50 places in a project.  Then, when I change the connectors pattern (without changing previous wires to the connectors), then I need to go each places(more than 50 places) in project and relink the subVI which will be very time consuming.

X.

    Yes, I mean a "relink" option which does the job automatically.

[A-T-R]

You may also consider this as a workaround:

http://forums.ni.com/t5/LabVIEW/Darren-s-Weekly-Nugget-05-26-2009/m-p/914169

[Ajay_MV]

A:T:R

    That's really helpful to me.  I just used it for my development and it reduced my development time by 30 minutes.  Thanks for your information.

--Ajay

[Darren]

Any idea that has received less than 3 kudos within 3 years after posting will be automatically declined.