Ok, here''s another question about the new 0.95 collections functionality, related somewhat to a question I asked here a couple weeks back. I''m working on a webcomic app. Users create issues, which have many panels, but they never edit the panels on separate pages. Instead, when they edit the issue, the issue data is on one form, while the panels are on another. Pre-0.95, I had one form per panel. Now I''d like to use the new collection functionality to have a single edit form. I''m having issues with form submission, however. Previously I did: <%= form_tag :action => "update_panel", :id => panel.id %> and this worked. As there are multiple panels per form, however, this doesn''t seem to work any longer; I struck the :id as there are multiple IDs per form and now get an error about not being able to update without an ID, same as I received before I used the form helper and tweaked the action attribute of the form tag. How do I resolve this problem again, only this time using collections? Also, will I need to modify my update_panel method in any way? Or do the form helpers take care of calling it multiple times? Is there some new section in the documentation that explains this functionality a bit more indepth than the blog post? I poked around a bit in the form helper docs, but nothing struck me as being of obvious help in this instance. Thanks.