Hi Esteban, > I need to "chain" two select options. I mean: when user choose some > option in combo A, it allows some options in combo B. > Somebody has already done this in magritte? > If not, any clue of where to start? Magritte-Seaside does not automatically support this scenario. There are several possibilities to get the desired behavior though: - Keith's work on Magritte-Scriptaculous provides this functionality out of the box, as far as I know. - If you don't want to use AJAX you could write your own view. This means you write a Seaside component that renders the two combo boxes and knows about their interaction. Then you assign this component as a Seaside view of the description #componentClass:. - A long time ago (when there was no AJAX) I wrote a NestedOptionsDescription and an associated view. I don't remember if that was part of Magritte or a commercial project. I don't know why it is gone. If this is what you need, I can try to dig it out for you ... Cheers, Lukas