Just run your application once, wait until this object appears, then you can add this object using object repository, then just add .Exist using the learned object.
Or you can wait until the object appears on, hit record, then just choose something on this object, stop the recording, come to the expert view, see the code and use it to modify...
Hope this helps.
Sorry for my explanation, if its not clear.
Also if you are sure this object is going to certainly show up, you can use WaitProperty as recommended. I think Exist() without any parameter value will return immediately.
Or you can wait until the object appears on, hit record, then just choose something on this object, stop the recording, come to the expert view, see the code and use it to modify...
Hope this helps.
Sorry for my explanation, if its not clear.
Also if you are sure this object is going to certainly show up, you can use WaitProperty as recommended. I think Exist() without any parameter value will return immediately.