Reposition & Close Edge Windows
Reposition This Page
You can right-click the page header and choose to float this Edge page in its own window, You can then re-size, reposition, minimize, maximize, and exit the window as needed. You can also right-click to dock the page to the top, bottom, or either side of the Edge window, or place it as a tabbed page on your Edge window. To turn a floating or docked page back into an Edge tab, drag the page to the center of your Edge window.
Your system task bar lists all open Edge windows for easy access to pages hidden by other Edge windows. When you exit and re-open a page, Edge remembers the last location and size of that page window.
Close Tabs Use the 
Close Tabs option of your to close all open Edge windows, except the one you are currently viewing.
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