Dialog Form with siblings

[amikphoto]

First of all I would like to thank you for your fast work with 1.5 version of Formset. I've just started testing it for my application. I use form with siblings and every sibling has a foreign key field. I don't undestand how to set activator for such configuration. How can I set names of sibling forms in "induce_open"? Does the Dialog Form work with siblings?

Thank you