On my Mac, and probably everyone else's, the sequence for getting é or É is this: Press the option key and the E key simultaneously. Then press the E key alone. Option-E gives you an acute accent on whatever letter you press next. á Á ó Ó
The umlaut is tied to the U. Option-U followed by O produces ö. The tilde, of course, is on the N. ñ The cedilla is on the C. ç


