Login to Menuboard Manager
Double-click the presentation you want to change
Perform edits
Publish your changes
If you need to hide an entry, simply click "N/A" for that card and it will be hidden. Make sure to save your changes or publish (the presentation will be saved automatically when you publish.
You can check the unit for the updates you published by clicking the "nine dots" and choosing Units. Double-click your unit to see a screenshot. Click "Take Screenshot" to get a fresh screenshot if needed. You may need to wait up to 30 seconds for the new screenshot to appear. Check the last screenshot date for accuracy.