Thanks for your prompt reply.
As regards email addresses what I was suggesting is that if, on the original page from which you copy the text there is a email@example.com entry possibly under an email me link that this was copied over to the text that will replace the old text - similar to the hyperlink issues I raised. Maybe it will be covered by your suggestion.
Maybe I missed the edit link for hyperlinks but I cannot find it. On which row does it sit?
I'll go and have another look for it.