I think it would be useful to have a sticky thread where users could post key commands for all kinds of keyboard layouts or just lists that include the changes versus the default shortcuts.
@Juerg_Loeffler
Note that it would be language-Layout sensitive, as some combinations with some languages are absolutely impossible with other keyboard layouts… Quite a complicated thread to read 
@MarcLarcher
You mean when I have a specific keyboard layout, I still may have different languages selected in the language settings of the operating system? That makes it indeed even more complicated. But I think it would be a first step to have the keyboard commands, when the keyboard layout corresponds to the chosen OP language. When for example I have a French keyboard layout I will usually have French in the language settings, or when I have a Swiss German keyboard I typically have Deutsch (Schweiz). Besides, what’s wrong with complicated threads