Here are a few things that would make both of these much easier to use. And may make title screen editing a lot easier.

-Copy and past for both. Map16 and the tiles in the texture editor. Broken down to quadrants would be good, but full tiles would still be a big improvement.

-Zoom function for the tileset. It is in the texture editor, but not the tileset editor. We do have the recent addition of map16 zoom, but it would be very helpful to zoom the tileset to the right of the map16 box.

-If possible 90o rotation of tiles? Don't know if this is possible, but would a lot more to the editing without using up valuable tile space.

-drag and drop tiles using a marquee tool. This would be helpful in the texture editor if you need to shift over a few pixels...otherwise you have to start all over.

All of these would save countless hours of editing.