What I usually do is create a .bat file then go to Task Scheduler to run the .bat file when I want it to.
Here's the basics of my .bat file. Just copy and paste it into a txt file and save the extenions as .bat. Change (***JSL FILE LOCATION***) to your jsl script file location and copy the line for all 7 scripts.
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:: Batch file that runs all JSL scripts
:: ::
:: C:\logfile_source.txt is created to record results.
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set logfile1=C:\temp\logfile_source.txt
"C:\Program Files\SAS\JMPPRO\12\Jmp.exe" ***JSL FILE LOCATION***
echo.JMP scripts have completed %date% %time% >> %logfile1%
Task Scheduler can be found Windows>All Programs>Accessories>Sytem Tools>Task Schedule. It's a pretty simple intuitive program. If you can't figure it out you can quickly find a tutorial on YouTube.