[PD] kiosk plugin - using only TCL / TK commands? (Linux)

[Ingo]

I have a question about the way the kiosk plugin works.
Is it using exclusively standard TCL / TK commands that can be sent
otherwise on the fly?

It looks to me like the kiosk plugin has basically one global setup for Pd
all windows (except for the console).
I'm asking because I might have changing situations where I want to show a
specific window full screen with no task bar but scroll bars and another one
maybe as a floating window "always on top" with no taskbar, no scrollbars
and not resizable, etc.

If this is the case what would be the best way to send these commands from
within Pd?
[shell] ?	[hcs/sys_gui] ?

Thanks!
Ingo