first thing you have to do is create and approve the scripts before they will show up in the run pane. here is a blog post about how to set up scripts
To enable script authors to approve and/or deny their own scripts, open the Configuration Manager administration console and navigate to Administration > Overview > Site Configuration > Site. Now open the Hierarchy Settings and remove the checkbox with Do not allow script authors to approve their own scripts.
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Thanks it worked...I have not seen an option to schedule the Script...
Thank you for your Help!!!