Things to know about Quechua
Quechua was the language of the Inca Empire. It is still spoken today in the region of the Andes, including parts of Bolivia, Peru, Ecuador, Colombia, and Argentina.
Typing Quechua Characters
Quechua is written in the Latin alphabet. However, it also uses characters with diacritic marks to indicate various aspects of pronunciation.
There are two ways to type the special characters used in Quechua:
The simplest method is to use the character suggestions. To do so, type the base character for the letter you want, then select the special character from the set of characters which appears.
The other method is to use the virtual keyboard with the layout set to Quechua. (If necessary, you can change the layout by clicking 
and selecting an option in the Keyboard Language menu.)
Locate the character you want on the virtual keyboard, then click on it or press the corresponding key on your physical keyboard. Capital letters and certain punctuation marks are available by holding down the Shift key.
See Typing Accents and Special Characters for details on both typing methods.