Currently, users have to use workarounds such as websites that create separator bookmarks. These workarounds are unreliable because Opera treats multiple separators using the same URL as duplicate bookmarks and can remove them.

A native separator should not be a bookmark/URL at all, but rather a UI element stored as part of the bookmark structure. It should be possible to add, remove, and reorder separators just like bookmarks.

Firefox already provides this type of organization, and it would make large bookmark collections considerably easier to scan and organize.