KWrite honors the following key bindings.
Insert Toggle between Insert and Overwrite mode
Left Arrow Move the cursor one character leftwards
Right Arrow Move the cursor one character rightwards
Up Arrow Move the cursor one line upwards
Down Arrow Move the cursor one line downwards
Page Up Move the cursor one page upwards
Page Down Move the cursor one page downwards
Backspace Delete the character to the left of the cursor
Home Move the cursor to the beginning of the line
End Move the cursor to the end of the line
Delete Delete the character to the right of the cursor
Shift - Left Arrow Mark text one character leftwards
Shift - Right Arrow Mark text one character rightwards
Alternate-S Set bookmark
Alternate-C Clear bookmark
F1 Help
F3 Find again
F5 Vertical selection
Control-F Find
Control-C Copy the marked text to the clipboard.
Control-F Find
Control-G Go to a given line
Control-I Indent
Control-K Delete a line
Control-N New document (the one already in editing will be saved)
Control-R Replace
Control-U Unindent
Control-V Paste the clipboard text into line edit.
Control-X Cut the marked text, copy to clipboard.