Use to change the keybindings for edit functions.
Type Kills SEL - whether or not typing overwrites the current selection.
Paste Sets Insert - whether or not <Button-2> to paste also sets the insert cursor (where stuff will get pasted).
Note: The selpaste function is for additional keybindings for paste.
Scroll Button: The Tk text widgets scroll if you hold down a mouse button and drag. This setting chooses which button to use. The default is <Button-2>. In this case, if you drag scroll, there is no paste operation.
The Events Helper lets you discover what events are generated by the keys on your keyboard.