I used (7.06 and before) to scale my objects horizontally and vertically with the arrow keys. Much quicker and more accurate than dragging. In the current version GS7.50/WED v6.875 the properties pane gets and holds focus. So scaling with the arrow keys is no longer possible.
Keymapping is no option, is a workaround available or can it be fixed?

have the same problem. When pressing one arrow key WED get freezed.

I noticed this error also

Thanks! The reason is that the arrow keys move in the properties panel. This will be fixed.