Re: Login Box - Display on Edit
As I understand your question, you do not want the Login box visible except when you are editing a page. That would make it fairly difficult for people to login (they would have to choose to edit a page just to get the ability to login). And really difficult to logout (you have to edit a page to logout)
Visiblity of modules (like the login box) are controlled by the users permissions. The visibility of a column is controlled by the feature (wiki, galleries, forums, ...) Editing a wiki page is just one part of the wiki page functionality. If you decided to say, have a right column visible only in wiki pages, then either viewing or editing will make it visible. If the login module is in the right column, it is only visible when the right column is.
For one client, I added categories to control visibility of modules (if a wiki page was in category X, then modules in category X would be visible). But even this will not do what you want, because viewing and editing a page still sorts on the category of the page. There is no distinction between edit and view of a page.
I don't see how you would do this. Is this reqt really what you want?
gary