Hi again Pommie,
The worst of all this, is that I couldn't reproduce what led me to think I needed an extra something for my macros to follow the application when copied. Briefly: whe opening my original version, most of the macros in there where referenced to a copy that did not exist anymore. Unable to make any forensic investigation (no time) I am moving ahead and just regret how much time I lost.
Only one good thing I can say: learnt about Addins, how to create and manage them and, dare to say, all around them, including how to reference them properly even with multiple worksheets open and multiple Addins available. That is where the Object Manager came handy.
Gracias for replying once more.