I found Placement editor super useful, it needs a few features to be "completed".
My thoughts:
1. I would like to see a Placement editor button inside AppGameKit instead diving into installation folders. Of course I can create a shortcut, but I think this should be part of AppGameKit interface.
2. I am not sure that I understand how coordinate numbers works in editor - the x and y of sprites are showing 0 on weird positions (somewhere close to upper left corner). Grid snapping and size changing is really awesome, I love it!
3. Remove the joystick for workspace panning and using the Space key + mouse click instead. Zoom option is missing.
4. Entity properties to be accessed by mouse double click - clicking Information button is tedious.
5. Import button. Locate sprite anywhere on disk and editor to make a copy in the media folder, when they can't be placed in random folders.
6. Making folders and subfolders in the media bar for better organization.
7. Option to create more than one level inside the editor (multiple tabs or however)
8. Free transform option. (I am aware of numerical ones) Scale icon is cool but it's uniform only. Would be nice to have something like free transform option in photoshop.
I really don't see the reason for paying 50 bucks for visual editor dlc when you can update this cool and quite functional tool.