Oracle Forms

Hi,

I have a Tab Canvas with 2 pages on it.

In one of the pages the data to be displayed will be
out of the region(size or length) of that page.

I read in this forum for the same problem, the
member had suggested to use a Stacked Canvas on that
Tab page alone and enable the scrollbars of the stacked canvas.

When I drag and drop a stacked canvas on a tab page
of the tab canvas I get the following error:

FRM-13002 : Stacked and Tab Canvas must be created
within content canvas.

Any help is appreciated.
Thanks in advance
Sharath