Depending on the size of your content update, and the network your player is sitting on, you may want to schedule your updates to occur only at a certain time.
To set a specific time to download the content:
1. Click Save (not Save & Approve) your playlist once you have made changes.
2. Click Publish to return to your playlist library
3. Hover over the playlist you have edited in the publish tab and click the approve icon.
4. Select Automatically approve on: and put in the date and time (use 24 hour time) when you want the content to download to your player.