When the pop-up window is displayed in a topic, you can switch the focus from the topic to the pop-up window, and back again. There are two methods for switching between the topic and the pop-up window, the keyboard arrow keys or the mouse.
Topic focus: You can switch from the topic to the pop-up window by using the arrow keys. When you use this method, the focus remains with the topic, and you can continue to type.
Pop-up window focus: When you use the mouse to move into the pop-up window, the focus moves from the topic to the pop-up window. To return the focus to the topic and continue typing, click inside the topic again (this action closes the pop-up window and returns the focus to the topic).
When you are in the pop-up window: