Hello,
I would like to suggest this feature:
<img src="https://dl.dropbox.com/u/47035927/temp/hidden%20and%20lock%20sprites%20on%20the%20scenario.png" border="0">https://dl.dropbox.com/u/47035927/temp/hidden%20and%20lock%20sprites%20on%20the%20scenario.png
And the scenario objects by canvas, where you'll can lock objects on the canvas, and hidden them to help you select and place other between two objects.
Why I'm suggesting this is because I never can select and move the objects between a scenario object (who need to be in the same layer of the other objects) and the behind small objects.
<img src="https://dl.dropbox.com/u/47035927/temp/canvas.png" border="0">
To move the player on the image above, you need to move the mountain to another layer, hide it and move the player =\</p>