You can use Viewer List to preview how an asset appears on particular viewer type platform such as HTML5. Depending on the asset type and associated viewer that you have selected to preview, not all platforms are available in Viewer List.
See Previewing an asset.
To preview a Spin Set:
In the Asset Library panel on the left side, in the Show drop-down list, select the Spin Set asset type.
In the Asset Library panel on the left side, navigate the Asset folders that contain the Spin Set that you want to preview with a viewer.
Do one of the following:
In the Viewer List window, in the table, click a viewer link to preview the asset in the selected viewer.
Close the displayed viewer.
In the lower-right corner of the Viewer List window, click Close to return to the Assets screen.