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A priori Windy map doesn't display current map scale and LoLa cursor position, excepting if I would missed some conf stuff.
Exporting current map in image format on client side would be yet other useful control to implement (see this post).
These are highly useful controls; e.g. a map without scale is like a color shading weather map without palette legend (thus useless).
Such controls are generally provided by map rendering frameworks, including Leaflet (e.g. here or here for scale).
Does Windy plan to implement this kind of controls in future releases?
Otherwise, I would say it should be highly desirable and useful to implement these controls in such an exclusively map-based web application.