In order to play out movies, graphics or to send GPI/Router commands you first have to drag them from the library and drop them into the workbench – as demonstrated in this figure.
Once dropped, they will be added to the folder and therefore to the list of elements, which are available for immediate usage. Above the workbench you see the timeline. Elements in the workbench can be loaded into the timeline and then played out.
In case there is no element playing out at the selected layer, the play out of an element can also be started directly from the Workbench. Please see chapter 6.12 Playing An Element (v2.5) for more informations.