If a POI is hidden, it will not show up in the map or be searchable. If you want to set a as POI hidden, please do following steps:

1. Click on the POI you would like to hide.
2. You will get a menu on your right hand side of the screen.
3. In this menu, go to the show/hide button at the bottom.
   
   
   
   
4. Tick the box "Hidden"

You will need to do the "Run Update" process and publish the maps for the POI to be updated in use.mazemap.com

If you want to get an overview of all hidden POIs, you can do this by clicking the box "Show only hidden" as shown in the illustration below. All blue POIs are hidden POIs.