Hi Shani, you can also use a time event to activate this every 2 hours. I'm not sure if you're wanting this to run 6a - 11p every day or every 2 hours from 6a Sunday to 11pm Saturday, meaning no runs from 11p Saturday to 6a Sunday.
If you're wanting it to run every day from 6a to 11p, schedule your event to activate at 6a and then in the event, set it to quit at 11p with a "check" time of 2 hrs.
If you're wanting it to run from 6a Sunday to 11p Saturday, schedule the event to activate at 6a on Sundays only, and then tell the event to quit +6 at 23:00.
Either way this will allow you to only have 1 entry in the schedule. Plus, with this method, if you need to stop it from running, you don't have to shut down a schedule or try to inactivate a bunch of entries in the schedule. You just stop the 1 event.
Hopefully that helps!
Jim