All three of your suggestions get me to character map, and that's what I asked for. Thanks you.
However, I just found what I suspect is an obscure list of speech macros at
WSR Application Macros - Browse /Speech Macros at SourceForge.net. There are ~15 different macros, among them, "numbers", "fractions", punctuation", "abbreviation", "sketch-up", and "word". Haven't installed all yet, but after adding "punctuation", I can now say "british pound" and get "£" on the page, or "umlaut" and get "ü".
Having one-click-to-character map is good; but saying umlaut and having it typed for me is better. (I did have to say umlaut 3 times and then record it as a new word in the speech dictionary, but now it works every time... )
Just installed "fractions", said three quarters, it typed "¾".
If these speech macro things work, grading papers will go faster.
Thanks again. I will use your suggestion. But right now, I'm going to check out these speech macros. There are even speech-macros for "unicode' and "ultra-edit".