Edit Theme content

1. Go to the "Content" tab where you can add or remove layers contained in the theme.
2. Click the Edit theme icon  to edit or remove layers that are already added.
3. To add a new layer to the group click the  icon on the group header.
   
4. This opens a Layer selection window where you can locate and select layers from the list. Click the "OK" button to confirm selection.
   
5. The layer is added to the new group.
   
6. If you want to remove layer form the group/theme, click the "X" icon next to the layer name.