I'm just now learning how to type in Portuguese. There are a number of characters that don't show up on the keyboard, mostly with accent marks. I used to use the symbols search tool in Word, and then I'd copy and paste, but here's a shortcut. By holding the Alt and Fn keys you can produce them, such as:
135 = ç
128 = Ç
160 = á
0193 = Á
0227 = ã
0195 = Ã
133 = à
0192 = À
0245 = õ
0213 = Õ
162 = ó
0211 = Ó
147 = ô
0212 = Ô
130 = é
144 = É
136 = ê
0202 = Ê
161 = í
0205 = Í
