Mojca Miklavec wrote:

> After some failed experimets with \presentationstep (I'm still not sure
> why it doesn't work) I've browsed through the archives a bit, but still
> didn't find any satisfying and elegant solution for what I need.

there are several methods (i played with them all and some presentation 
styles have them):

- add more content and reprocess page
- do some otr trickery and push back previosu content
- use pdf layers

the first method is nice for some applications (see some presentation 
styles); the second ons is the mostly used in other tex packages, but it 
has some drawbacks, like a good chance for broken cross ref mechanism, 
and lists (due to multiple flushes) and huge files.

The last method works quite well, you may try:

\usemodule[pre-60]

....

\StartSteps

whatever \FlushStep
some more \FlushStep

\StopSteps

(attached: texexec --pdf --mode=demo s-pre-61; click on text area or 
buttons;  state of page is remembered)



Hans