Metainformation for sprite-instances needed in map-editor

Now there is only a possibility to place a sprite on map. It would be cool to controll properties of a sprite instance, which is already placed on map via map editor.

1. Associate folder or single sprite (on the left map editor side) with an existing class.
2. After you placed a sprite on a map you should be able to double click it on map
3. upon double click a popup window with the properties of associated class comes up
4. you can set up some needed properties to specific values
5. when you close dialog with ok these values are written into the map by the map-editor. like map.setAt(x,y, propertyList)
6. when i walk through the a map in code I can get not only the name of a sprite used on XY position in map, but also the properties I already set up in map-editor

local map = maps["some_map"]
local sprite = map.get(0,0)
print(sprite)

//where sprite is an object for example:
//object
//  name = "enemy"
//  sprite.life = 20
//  sprite.direction = -1
//  sprite.id = 32
//end

Unfortunately I can't find a possibility to extend the map editor via plugin, When I create one, the place where the editor should be is completly empty.

Would be nice if someone rewrites the editor so it is written totaly in microScript as a plugin so we would have a possibility to extend it