Use Window ‣ Resize Document Prompter to set the size of the prompter content when prompting on a single-screen with the Windowed prompting setting. The typical use is with streaming apps or video capture, when you may need content at a particular size.

This feature specifically sizes the prompter content area. The window size itself will be larger to account for its titlebar, toolbar, and other window chrome.

The size list can be customized with the Edit Sizes… item:

Preset sizes window

Window Locking

To prevent a window from being accidentally resized (or automatically resized by macOS around the Dock and other screen elements), choose Window ‣ Lock Window Resizing. One case for this is if you need to resize a window larger than can be displayed on screen (which is not recommended, but doable).

Tip

Hold Option before choosing a resize item to resize all open document windows. Hold Option before choosing Lock/Unlock Window Resizing to lock or unlock resizing for all open document windows.

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