The target screen for a link is the screen that link will arrive at after performing the necessary gesture.

Assign a link target

Once you create a link the red link line is shown starting from the link you created. Find the screen you’d like to target and click anywhere on it to target it with the link line.

Change the target of a link

Quickly re-target a link by selecting it and then clicking and dragging the target end of the link line and dropping it on a new screen.

You can also choose a target from the Target menu in the gesture in the layer inspector sidebar.