#27 Keyboard support: Cut and Paste limitations

[Randolf C. Richardson]

Cut and Paste keyboard functionality is partially
supported in the Docs editing section, however, using
CTRL and Shift with the INS (Insert) and DEL (Delete)
navigation keys have no effect. The expected
behaviours are:

CTRL-Insert: Same as CTRL-C (Copy)
Shift-Insert: Same as CTRL-V (Paste)
CTRL-Delete: Same as Delete
Shift-Delete: Same as CTRL-X (Cut)

Thanks in advance.