idlwave-shell-activate-prefix-keybindings

idlwave-shell-activate-prefix-keybindings is a variable defined in `idlw-shell.el'.
Its value is

t

Documentation:
Non-nil means, the debug commands will be bound to the prefix key.
The prefix key itself is given in the option `idlwave-shell-prefix-key'.
So by default setting a breakpoint will be on C-c C-d C-b.

You can customize this variable.