I wonder how one knows Corel hidden hotkeys like pressing Alt while drawing with the Bezier tool to move the anchor point around. I don't see they are mentioned anywhere.
A few years ago I made a list of Shortcut Keys for Draw X4. Jeff Harrison cleaned them up a bit and posted them on Foster Coborn's Graphics Unleashed site. 7 pages as I recall. They are not complete as far as all tools go. Those you can find in the help section on how to use the various tools. http://jeff-harrison.unleash.com/2009/03/coreldraw-x4-shortcut-keys-list.asp
For the most part, Corel's Shortcut keys are the same most versions. I am sure some have been added for X6.