insert script

[Hershel Fisch]

Hi all ,
I'm trying to figure out how the insert script works.
I have a "script Lib." stack containing only custom handlers and 
functions
I have a sub stack "myStack" in an openStack message I  put in "insert 
script from stack "script Lib" into back"
Now when I open the sub stack "mySTack" the on openStack message 
triggers the handler from the script lib. even its into back and I have 
an on openStack in the main stack.  Also when open another sub stack 
with no insert script in it , it triggers that same script as said 
above , wondering , what is the proper understanding of the "insert 
script" .
Thanks a mill. Hershel