"Allow transfer from / to" IP-Update

My Provider changed one of their IP-Address for NS I use.
They inform me I have to change it to make it work in the future.

I’ve looked into the BIND Module and changed it in the Zone Defaults:

But I wonder if that is enough, or if I have to change the IP in any single NS-Entry where I’ve used the old NS-IP for?!
Generally not, or am I wrong. If I understand in right way, global setting fit my needs, as anytime if any of the entries are changed in my NS, it recognize the new IP via this global setting… or am I wrong?

Use the mxtools “DNS Check” to see if you have done it correctly.
I guess your talking about Webmin here not virtualmin.
You should only have to change records to reflect your providers change.