R Tcl/Tk: How to put widgets in text widget?

Dear all,

please excuse the somewhat special question:

From within R I create a Tk windows with a list of checkboxes, which can

bekome too long for the screen. The obvious solution would be to put all
checkboxes into a frame and make that scrollable. Alas, there are (for
whatever reason!) no scrollable frames in Tk :-(

The usual workaround is to put widgets (my checkboxes) into a textbox,
which you _can_ make scrollable. In Tcl/Tk, when $t is a text widget, the
code would be as follows:


button $t.help -bitmap questhead -command Help
$t window create end -window $t.help

But what is the R equivalent? From the general naming scheme I would have
guessed something like 'tktext.window', but that doesn't exist. Any trick
with 'tkconfigure', perhaps?

Any help is urgently appreciated ;-)
(Which could also be a totally different workaround ...)

Cheers
Christoph