Can i do Expression to keyframes and smooth via script?

Question

hi guys, who know AE scripts can translate expression to linear keyframes via script(now i use app.executeCommand(app.findMenuCommandId("Convert Expression to Keyframes")) ; command) but , for Comman work i must select every time property of layer(opacity, position, scale, etc) where i have expression.... but i need translate very many layers, i always click on property with expression and then do Convert Expression to Keyframes its to long.., can i do something like this
for (var j= 0; j<selectedLayers.length; j++) 
                   var SelLaye= selectedLayers[j];                  
                   if (SelLayer.transform.opacity.expression!=null && (SelLayer.transform.opacity.expression!=null) && (SelLayer.transform.opacity.expression!=null)) //check if layer have expression
                         SelLayer.transform.position.select=true;  //and here i need set cursor to position, expression, etc, where i have expression and translate to linear kayframes(but i dont know how)
                         app.executeCommand(app.findMenuCommandId("Convert Expression to Keyframes")) //do translation
                         SelLayer.transform.rotation.select=true;
                         app.executeCommand(app.findMenuCommandId("Convert Expression to Keyframes")) 
                         SelLayer.transform.scale.select=true;
                         app.executeCommand(app.findMenuCommandId("Convert Expression to Keyframes"))
                         //and after this also need do a smoother or something like this for decreasing linear keys for max(because app.executeCommand(app.findMenuCommandId("Convert Expression to Keyframes")) create to many keyframes)
sorry for bad English

Answer 1

Sup,
Earlier Dan Ebberts already wrote the answer on CreativeCow:
http://forums.creativecow.net/thread/227/13039#13041
Можно все выбранные значения добавить в массив и потом уже дергать из оттуда, ну либо вручную прописывать в скрипте. Кому как больше нравится.
AE has "Smoother" panel, but as far as I know you can`t access it via scripting using app.executeCommand(app.findMenuCommandId("Smoother")) or something.
But there is a script that makes same work , called Smart Baker. You can download it here:
http://www.creatogether.com/ctg-smart-baker