To add a link to an image, click on the image. When the image is selected, there is a toggle switch in the right column that says “Link”. Click the toggle to enable it (it will turn blue), and a “Url” field will appear below it, where you can type the link URL.
This is how you can do it in the new version of Chamaileon editor:
Click on the image, then click image properties on the right side of the toolbox and mark turn on the link switch. Add your link in the URL box below.