Hide some of the tiles by editing the DITA map

If your documentation is very large or there is a large number of topics on the first level, you might want to hide some of the tiles. Also, this might be useful if you only want to display the topics in the first page that are most relevant to your intended audience.

One method involves editing the DITA map and marking the topics that do not need to be displayed as tiles.

To edit the metadata in the DITA map to control which topics on the first level of the DITA map will not be displayed as a tile, follow these steps:

Open the DITA map in the Text editing mode of oXygen.
Add the following metadata information in the topicref element (or any of its specializations) for each first-level topic that you do not want to be displayed as a tile:
```
<topicmeta>
  <data name="wh-tile">
    <data name="hide" value="yes"/>        
  </data>
</topicmeta>
```