Kedves Katalin,
I just found the time to check that window.
The trouble is that it shares the GUI with all the other windows but, of course, it's in same way a "special" window because you cannot set different values for the right and the left side as well as for the top and the bottom side.
The whole casing (the external one and the internal one) should have one thickness and one width (not two/four different values depending on left/right/top/bottom).
I tried several time and I found that, from some strange reason, the used values (in the GUI interface) come from different sides. So, for example, if you want to set the width you should use the right values (in the UI) but if you want to set the thickness you have to use the left value (in the UI).
The "guilty" obvious result is that the parameters list (that you suggested to use) cannot work because it is built (in the correct way!) to use just the values coming from the same side.
On the other hand, the 2D Symbol behave like all the other "normal" window that means it follow all the parameters (so you can have different values on the different sides left/right).
Hope this will help you in fixing this trouble,
friendly
Fabrizio
For Nicola: just play with the parameters on the two different sides of the window and you can "easily" get what you are looking for but, to help, you should display the 3D view of the window because the 2D Symbol will confuse you.
Fabrizio Diodati
Graphisoft Italy Srl | Via Rossignago 2/A Spinea Venezia 30038 Italy