I have now copied and pasted it from Google, but it would take too long if there were several special characters. Serious answers please
2 seconds google say:
ñ: [Alt] + 164; Ñ: [Alt] + 165
There's an extension of the character map that I use for such things. Is called mychars
https://archive.codeplex.com/?p=mychars
Old + 164
The special characters are already integrated in most writing programs.