Redmine

I would like to keep information about a project organized in some place in Redmine. I thought the best are would be wiki. But is it that hard to manage a documentation system?

• There is no other way to add a new page than adding a link into a page. I know this is the default wiki behaviour. But why not add "add new page" button anywhere? What is the reason behind it?
• Keeping an organized structure is too hard. You have to add parent pages: after creating the child, then rename (why rename to add parent? this isnt intuitive at all). You see the tree structure only if you click on sort by title link. There is no way to display it as a block on sidebar.