Nadeem,
The purpose for the "Direct Link to Sample" is for when you want to send someone a link to the sample. You will notice when you view the samples the particular sample that you choose is not indicated in the url so if you try to send some one the url they will only be directed to the main sample page and not that specific sample unless you copy the url after choosing the "Direct Link to Sample" button. The copy to clipboard is not longer needed in the new site, because when you copy the code now from the samples it maintains it's line break and formatting unlike the old site, when you DID NOT use the copy to clipborad the whole code was pasted with out line breaks or formatting.
