[Zope-PTK] Can't call constructor from web

[Philipp Dunkel]

Hi Zopistas out there!

I added my own ZClass to the portal-class in product
DemoPortal.
Adding instances of this new class (block) from the management screen
works just fine, but when I try to call the method Block_add via
a Wizard from the web, a authorization box pops up.
How can I allow my users to add instances of this class to there
"MyStuff"-area?
(I used the standard constructor created by zope)

thank you
Philipp Dunkel
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