You can add links to your magazines pages in our hotspot editor. To get to the hotspot editor first go to the document manager under "My magazines".
Then click "Edit pages".
First choose a page on the right side on which you want to place the element. Then click on the link icon on the left side. With your left mouse button pressed down, drag open the link element on the magazine page in the desired size. After that you can configure the hotspot on the right side.
Enter your link and the tooltip into the configuration box. The tooltip will be shown when a reader hovers over the link with his/her mouse.