You can define unlimited amount of bookmarks and organise them into a tree structure. All these bookmarks are available in Bookmarks menu and from a toolbar button.
Creating bookmarks
Creating bookmarks is extremely easy: just go to the location you want to bookmark and then use menu command Bookmarks/Add Bookmark... Then enter description for this new bookmark and thats it.
Organise bookmarks
To edit bookmarks' descriptions and move them in the tree structure use menu command Bookmarks/Edit Bookmarks.... Bookmark editor dialog will appear and there you can do anything with your bookmarks.