Select Connection (B) Tool - how it works

I noticed a new Select Connection tool in Revo Scan 5 (I don’t know how long ago it appeared), but I myself can’t understand how it works?
Tell me what it is for and how to use it.
Thank you.

It works the same way as lasso tool to select scan areas , but paint brush allow you to paint just one point and select the whole part of the scan or lose part of the scan …

You touch one point and everything that is connected , fused with that point will be selected red …

Just another selection tool
For example you have 2 lose parts in your scan, all you need to do is touch it with the brush and it will be automatic selected .

I believe the original idea was little different , but got not executed as it should …