The answers area of the match / matrix questions in WatuPRO does not use the rich text editor. There is just no space to put it there because there are two boxes for each answer. The rich text editor will make the UI there bad.
But you can still add images there by entering HTML code. The easiest way to do so is this:
- Scroll down just a bit to see the “Optional Answer Explanation” box
- Click on its “Add Media” button
- Locate or upload your image
- Get its URL from the “Attachment Details” sidebar which appears when the image is clicked
- Copy the URL
- Enter
<img src="URL HERE">
in the answer box and paste your URL in place of “URL HERE” words. - That’s it.