Both scanned figures, warped onto the map. Pins follow the chart’s own numbering while it’s shown, so they match the red arrows.
Off keeps the map still while you step through breaks with ←→ or pick one from the list.
Safari cannot open that dialog for a page, so it is two taps:
- Tap in Safari’s bottom bar
- Scroll down and tap Add to Home Screen
It then opens without Safari’s chrome, which is the only way to get full screen on an iPhone.