One of the windows that pops up when the user has selected the 'Media Synchronized Viewers' tool is a dialog that allows him/her to select viewers.
On the vertical axis of this matrix all tiers (annotation layers) are shown that are part of the transcription that was selected in the browser. On the horizontal axis a list of different screen representations of this tier data is given. The user can select any combination of viewers and lauch them.
Each individual viewer is described on the next pages.