To add a Short Answer / Essay question select the underlined Question Type.
This will open the Short Answer / Essay page. Select the Add Question Icon 
to the right of the Short Answer / Essay header.
This will open the Edit Question: Short Answer / Essay window. Enter the Question, an Explanation (optional), upload a photo (optional), and select the Save Button 
.
The Question is now added.
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Add Multiple Choice (Single Answer) Test Question/Answer
Edit Multiple Choice (Single Answer) Test Question/Answer
Delete Multiple Choice (Single Answer) Test Question/Answer
Add Multiple Choice (Multiple Answer) Test Question/Answer
Edit Multiple Choice (Multiple Answer) Test Question/Answer
Delete Multiple Choice (Multiple Answer) Test Question/Answer
Add True / False Test Question/Answer
Edit True / False Test Question/Answer
Delete True / False Test Question/Answer
Add Yes / No (With Explanation Required) Test Question
Edit Yes / No (With Explanation Required) Test Question
Delete Yes / No (With Explanation Required) Test Question