I'm a shortcut user too, but I do think putting things into sub-menus in the context menu was a mistake. I notice that a lot of new & casual users rely on that menu for the most frequently used commands. Overall Graphisoft went way overboard with sub-menus when designing the default command layout for ArchiCAD 10. I think it's much faster, and less prone to mousing errors, to have long menus rather than sub-menus. A lot of us spent (far too much) time rearranging the menus to be more agreeable. Another benefit of single long menus is to quickly remind the user of hard to remember KB shortcuts. For the life of me I can never remember Split
AC25 INT, Mac (home), Win10 (work)
Yes, you read that correctly, we are in the US but use the INT version, because the libraries are better.