Editing:
CTRL+Space (I do not like the auto-completion to pop when I do not ask it to)
F11
ALT+G
Ctrl-Shift-x/c (for which funtion do you have set the "v", oBFusCATed?)
CTRL+D
CTRL+clic (multi editing feature have some problems with copy and line returns but that's better than nothing... I guess the problem is from the scintilla component. There is also problem with auto-completion which tend to pop itself on some conditions, but I think this last one is because I didn't configure it properly)
UI control:
F2
F1 (set to Manager instead of help, because SHIFT+F2 does not work here... like that, this key is still my best friend
)
Debug:
F5
F8
And then, for menus, ALT+underlined letter of menu, followed by the underlined letter of the entry I want. And that's often build and debug menus, so ALT+D, ALT+G.
Then, mostly classic shortcuts: copy/past, move to begin/end of a word, a line or a file, undo/redo...
But I think someday I will remap many of them, because of problems I have with function keys + modifiers (shift, alt and ctrl).
To know what could be of some use, you should go to the keyboard shortcuts configuration.