@spikepipsqueak,
Sorry, Spikepipsqueak.
If you had read my earlier posts, you would have noticed that Solipsister has always treated my questions as though they were for a joke column.
Being confused by her, I had not read your reply more carefully. After reading your latest response, I went back to your earlier post and, yes, you had indeed replied to my question and I have to say it makes sense to me.
Once again, my apologies and, of course, many thanks for your help.