It's OK thanks Jason, I got the page working using the standard "Security Assist email password bahaviour" ... after 6 hours of non stop fiddling about.
In testing your Universal Email solution your typo from/form in your reply "Set it to filter the emailAddress column on the emailAddress from element" threw me for a good while.
I do think that the documentation could be improved. Most of what is needed is there, but lightweight and dispersed. The videos are especially irritating as the key info is gone in a blink, while the printable files lack depth in general. I'd like to see one single PDF for each product that I can print and study and make notes on, and that explains slowly, carefully, what needs to be done.
Again: great products, but the learning cure, even for a seasoned programmer like me, is very steep. The productivity improvements I am expecting by using the WA tools is yet to come, but I am sure it will.
Thanks for your help.