Articles tab
Up, Down, PgUp, PgDown	-	navigation
Escape	-	select all
Enter	-	translate
Ctrl + Enter	-	suggest spellings
Shift + Enter	-	pop-out
History
Alt + Left	-	back
Alt + Right	-	forward
Translation Window
Ctrl + F	-	find in article
Ctrl + Alt + V	-	translate clipboard
Ctrl + Alt + S	-	show settings
double-click a word or select text + right click	-	translate menu
Find Window
Escape	-	select all
Shift + Escape	-	close
Enter or Down	-	highlight next
Shift + Enter or Up	-	highlight previous