Sprite sheet and Cocos Studio

Hi.
I’m using Cocos Studio and recently decided to experiment with texture packing.
I’ve created a sprite sheet and put all graphic elements to it.
The question is, how can I link certain sprite from CSD file to that sprite sheet?
I tried to use the name that is given to image aft it’s injected to sprite sheet, but it’s not working

Here is the plist sprite sheet fragment (mainmenu.plist)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>frames</key>
        <dict>
            <key>_MainmenuScene_btnArcade.png</key>
            <dict>
                <key>aliases</key>
                <array/>
                <key>spriteOffset</key>
                <string>{0,0}</string>
                <key>spriteSize</key>
                <string>{350,350}</string>
                <key>spriteSourceSize</key>
                <string>{350,350}</string>
                <key>textureRect</key>
                <string>{{1,503},{350,350}}</string>
                <key>textureRotated</key>
                <false/>
            </dict>

Now try to use _MainmenuScene_btnArcade.png. A fragment of MainmenuScene.json (compliled version of MainmenuScene.csd):

                  {
                    "FontSize": 14,
                    "ButtonText": "",
                    "TextColor": {
                      "R": 65,
                      "G": 65,
                      "B": 70
                    },
                    "NormalFileData": {
                      "Type": "Normal",
                      "Path": "_MainmenuScene_btnArcade.png",
                      "Plist": ""
                    },

I’m loading spritesheet before instantiating MainmenuScene

cc.spriteFrameCache.addSpriteFrames("/MainmenuScene/mainmenu.plist");

What am I missing? Is it possible at all?

I’ve just noticed a “Plist” attribute in UIButton json representation. Also I’ve analyzed cocos js framework and it looks like this is it. But I couldn’t manage to make it work nevertheless. I specified "Plist": "/MainmenuScene/mainmenu.plist" but it didn’t affect. Graphic assets don’t load, I watch just empty scene when run the project

I’ve made a little bit of research of cocos2d js runtime code and discovered the solution. to make it work the attribute “Type” must not be equal “Normal” or “Default”. I did the following:
“NormalFileData”: {
“Type”: “Atlas”,
“Path”: “_MainmenuScene_btnArcade.png”,
“Plist”: “MainmenuScene/mainmenu.plist”
},

and that’s worked.