Currently all help texts in the "rectangular region"-mode, such as the mid help text (which explains that the user has to draw a rectangle on the screen) and the bottom help text (key/mouse actions explained), are displayed on the primary screen all the time, no matter on which screen spectacle is used.
With this patch, all the help texts will be displayed on the screen, where the centre of the rectangular region is the user has drawn (default if no rectangle is drawn should be the screen, where spectacle is opened)