The Canvas page editor shows a live preview below the code, and Loupely Canvas Pro can pop that preview out into its own window. Move it to a second monitor and you can write on one screen and watch the page update on the other.
Opening it
Open a page under Loupely Canvas Pro, Canvas Pages. At the Live preview heading, click Open preview in its own window. The preview opens as a separate browser window you can drag to a second monitor. It updates live as you type, the same as the inline preview.
Bringing it back
Close the window, or click Bring it back here in the note above the preview, to return to the inline preview pane.
How it stays in sync
The editor window stays in charge. It owns the page, the saving, and the snippet expansion, and it streams the rendered preview to the pop-out window. The pop-out is just a viewer, so a single-monitor workflow is unchanged, and saving works exactly as it does without it. The connection is local to your browser on the same wp-admin origin, so nothing is sent over the network to keep the 2 windows in sync.
Snippet tokens expand in the popped-out preview using the same server-side logic as the front end. Your global header and footer styles aren’t included in the preview, the same as inline. To give the editor itself a full monitor at the same time, use full screen mode.