Yes please.
The way I currently do sorting is with prefixes. For example, all of my engineer bookmarks are prefixed with ENG. It does get annoying when you need to scroll through all of your bookmarks just to find a specific station in the 50+ bookmarks you have. Can we get filters to sort by bookmarks by type please? I don't want to look at bookmarks for systems, planets, stations, etc at the same time. If I'm looking for a planet I only want to be looking at planets, and the same thing goes for systems and stations. Even if it was just a short list that let us filter for different types of destinations, it would be so much better than what we currently have.