\e$B%A%c%s%M%k$N%b!<%I$r@_Dj$7$^$9\e(B(@code{riece-command-change-mode})
@item C-c o
@findex riece-command-set-operators
-\e$B%f!<%6$K%*%Z%l!<%?8"8B$rM?$($^$9!#A0CV0z?t\e(B (@kbd{C-u}) \e$B$rM?$($k$H!"%f!<%6$+$iH/8@8"$rC%$$$^$9\e(B(@code{riece-command-set-operators})
+\e$B%f!<%6$K%*%Z%l!<%?8"8B$rM?$($^$9!#A0CV0z?t\e(B (@kbd{C-u}) \e$B$rM?$($k$H!"%f!<%6$+$i%*%Z%l!<%?8"8B$rC%$$$^$9\e(B(@code{riece-command-set-operators})
@item C-c v
@findex riece-command-set-speakers
\e$B%f!<%6$KH/8@8"$rM?$($^$9!#A0CV0z?t\e(B (@kbd{C-u}) \e$B$rM?$($k$H!"%f!<%6$+$iH/8@8"$rC%$$$^$9\e(B(@code{riece-command-set-speakers})