Changing the name of a bookmark

I was wondering if it’s possible to change the title of a bookmark? They seem to take the title of the page they’re bookmarking which is often good but sometimes a site adds stuff to its title that makes it a bit messy or confusing.

I saw this post from last year about providing ‘content’ via the bookmarks API. Would that be the main approach? And if so did that feature make it in? I didn’t see it mentioned in the API docs but I could have missed it.

Thanks very much as always!