In all of the exercises on this site, you can enter your answers with or without length markers. Answers without length markers will be accepted as correct. However, if you want to practice using length markers, you can do so. In each exercise where characters with macrons are part of an answer, you will see a button for each vowel+macron at the bottom of the page. To type a vowel with a macron, press the appropriate button. The vowel with a macron will appear in the focused text box, at the end of any text which is in the box.

For instance, if you want to type "aquā", type "aqu" then press the "ā" button at the bottom of the page to add the ā character.