Opening this one leaves the others alone.

So a reader can compare two panels side by side.

Useful for reference material; wrong for a wizard.

The page behind it

Filler so the stage behaves like a page — something to scroll, and something for a translucent bar to pass over. The component above is the subject; this is only the ground it stands on.

Filler so the stage behaves like a page — something to scroll, and something for a translucent bar to pass over. The component above is the subject; this is only the ground it stands on.