Larry advised...
>parm device
>echo io !device>sprompt
>echo exit>>sprompt
>sysinfo.prvxl.telesup <sprompt
Great idea. Didn't know about that SYSINFO feature.
However, let me contribute using it with INFO string:
:sysinfo.prvxl.telesup "io !device"
Lars (from sysinfo "help")