Patrons with accents in their name - Millennium and Prospector

A Spanish speaking patron at SG wanted to request a Prospector item. I entered his last name and library card number into Prospector and was rejected because the "information submitted was not correct." I double checked the spelling of his last name in Millennium and it contained an accent on the E or the A. I could not figure out how to enter his name into Prospector with the accents. I ended up using his first name because it did not have an accent.
Then, in a wonderfully collaborative effort, I asked a Spanish speaking PSS from May (Carina), to show me how the heck we do accents with the Apple keyboards. Here is her immensely helpful response.

"In Spanish when we write we always need to put written accents and tilde and in that way words will have the correct meaning.
For instance: if you write “papa”, “Papa” and “papá” they seems to be the same word, but the first one “papa” (without written accent) means “potatoe”, “Papa” with capital letter means “Pope” and “papá”  (with written accent) means “daddy”. For that reason it is very important to write those always.
Also we also use written accents just for vowels and tilde for a consonant.
For English people is easy to use the computer English keyboard and you can get those written accents and tilde using the following list (please press “alt” key and at the same time a number and then release them at the same time and you will get those well):
1)       á = alt + 160
2)       é = alt + 130
3)       í = alt + 161
4)       ó = alt + 162
5)       ú = alt + 163
6)       ñ = alt + 164
(The alt key is also labeled "option")."
So Bravo! to Carina for helping us learn a new way to better serve our patrons and to honor them with correct spelling of their names.
P.S. I just tried this with my Mac laptop and it didn't seem to work. Perhaps the keyboard with the external 10-key is the only way?