> Why is this a feature of a specific application and not the WM? Presumably because it's quicker or easier to implement this at the application layer rather t

> Why is this a feature of a specific application and not the WM? Presumably because it's quicker or easier to implement this at the application layer rather than at the WM layer. Also, it makes the functionality available no matter which WM one is using, including ones that don't support this natively.