. For a summary of the rules for when to use an accent mark in Spanish, go here. Please get in the habit of using the computer to type accent marks and do it as you type.This is much easier and more porfessional than going back over a document and adding the marks afterwards. Now select the Keyboards and Languages tab at the top of the new window and then click on Change keyborads.... The large white box contains a list of the languages and keyboards you have installed. – To add a Spanish keyboard, click on ADD. – There is a long list of Spanish spell-checkers available.