Use tablets and phones as screens
Turn any tablet or phone in the house into a screen for your photos — a photo frame on the wall, say — just by opening the Live page in its browser.
Any browser on the network that has the Live page open is a screen too. It appears under Live pages on the network in Screens ▸ Setup while the page is open — there is nothing to enlist — and takes a mode like any other screen.
This needs the LAN server to be running. While it is off, the Setup pane says so and links to its settings.
Full screen
A browser only goes full screen when someone taps it. Fullscreen all on the Setup pane asks every open live page to show Double-tap for full screen, and the line beside the button counts how many have done it.
For a photo frame on a wall, add the live page to the tablet's home screen: it then opens with no browser bars at all, and on an iPad that is the only way to fill the screen.
Which device is which
Each page is drawn in its own shape and with an icon for its kind of device, and Identify shows its number on the device itself. Hover its box for its device, browser, screen size, orientation and address.