Please, elaborate. What do you find difficult and how would you imagine 
a better behavior? 

When I install, I am prompted to select 

Gnome
KDE
Other

In previous suse linux versions, one could select one of these, and have the
possibility to add additional packages. Now:

1. Select one of Gnome, KDE, other
2. Select Expert
3. Select Gnome, KDE, other again
4. add some more packages

I would prefer having a possibility to add software directly after the main
selection.

 Sounds like checkboxes could help a bit.  
 
Anyway, for future versions... 

I think we could remove the step 3.  It has no extra information and everything
in it is shown in 1 already.

Klaus and myself discussed this and propose to remove this.  Could you to it,
please?

Skipping the base selection dialog and going directly to the single package  
selection should be doable (without major pain I hope) 

I agree, this is really a good idea! Thanks to Berthold.

There are some checks in step 3 which cannot be done in step 1 (eg. disk 
space). I will go through the code and try to make it safe. 

Hmm, you're right. But if the disk space doesn't allow for either desktop 
selection, you're doomed anyway with the current approach. 

In case of the desktop selection it is simpler - I store the selected desktop 
and use it as preferred selection while creating the proposal. 
 
I hope I haven't missed anything. There are several annoying reports in case 
of too many packages selected, but I hope it is not problem. 
 
Resolving as FIXED (in SVN, will submit the package today).