Marcin Floryan wrote: 
On Wed, Mar 05, 2008 at 07:59:20PM +0100, Maximilian Albert wrote:
 just quickly implemented this because I needed it myself. :) Regarding 
the UI, I figured it would be best as an additional menu entry but 
couldn't really find an optimal place for it. For now I chose 
"Edit->Guides around page". Do people find this appropriate or are there 
better suggestions?
    

How about Document properties/page in the Border section add another option
"add guides for border". This is where it would seem sensible.

... or put it on the guides tab (in the document properties dialog)...

Not that I have a preference though, but just to share with you my 2cts,

Diederik