How to delete silence in batch process using Audition CS6

I've started using Audition CS6 recently.

I'm able to delete silence at the beginning and end of the source audio files using delete silence effect (from diagnostics window).

I'm not able to record this as new favorite so that I can apply it in the batch process.

How can I delete silence at the beginning and end of the source audio files (1000 or more files) using batch process?

It will be of great help if I can get guidance on this, instead of manually editing these files.

Thanks in advance for any assistance.