+\begin{description}
+\item[Draw Media] determines if picons \index{picons} or waveforms \index{waveform} are drawn on
+ the asset in the track. You may want to disable this if you know
+ that the media/format takes a long time to draw on the timeline. By
+ default it is set to on in order to see picons on the timeline.
+\item[Don’t send to output] \index{mute} -- more commonly called
+ \textit{mute} -- causes the output to be thrown away once the track is
+ completely rendered. This happens whether or not \textit{Play track}
+ is on. For example if you mute all the video tracks, the rendered
+ media file will have a blank video track. Mute track is represented
+ on the timeline with a line that has the default color of a
+ pinkish-orange. Use the pulldown \texttt{View $\rightarrow$ Mute} to
+ have the line displayed. It is a keyframable attribute, but Mute
+ track keyframing is a toggle and it has only the two values of on or
+ off. If a track is part of a shared track effect, the output of the
+ track with the shared track effect is overlaid on the final output
+ even though it is routed back to another track (the shared track).
+ Mute track is used to keep the track with the shared track effect
+ from overlapping the output of the source track (the shared track)
+ where the shared track effect is not present.
+\item[Gang Fader] \index{gang fader} cause the fader to track the movement of
+ whatever other fader you are adjusting by dragging either the fader
+ or the curve on the track. It doesn't affect the editing made with
+ menu controls. A fader is only ganged if the arm track is also on.
+ This is often used to adjust audio levels on all the tracks
+ simultaneously. Gang also causes Nudge parameters to synchronize
+ across all the ganged tracks.
+\item[Master Track] Mark a track as \textit{master} serves when using \textit{Gang Channels} or \textit{Gang Media} mode. See \nameref{sub:displaying_tracks_ganged}
+\item[Track Data Height] \index{track!height} this up/down toggle symbol to the immediate right
+of the 5 attributes, is used to individually resize each track. This makes
+it very easy to temporarily expand or contract the size of that track either
+by clickin with the left mouse button or using the middle wheel up/down.
+\item[Fader slider] \index{fader slider} fade values are represented on the timeline
+ with a pink (default color) curve that is keyframable. All tracks have a fader, but
+ the units of each fader depend on whether it is audio or video.
+ Audio fade values are in dB. They represent relative levels, where 0
+ is the unaltered original sound level, -40 is silence, -80 the
+ minimum value set by default. You can move fader and keyframes down
+ to -80 but the parameter's curve won't go below -40. For your
+ convenience you can set a different fade range with the curve zoom.
+ Audio fader’s main purpose is to \textit{fade out} sound or to lower
+ the sound level smoothly to silence, or \textit{fade in} to make
+ sounds appear gradually instead of suddenly. Video fade values are
+ the percentage of opacity of the image in normal overlay mode, the
+ percentage of the layer that is mixed into the render pipeline in
+ the other overlay modes. Click and drag the fader to fade the track
+ in and out. If it is ganged to other tracks of the same media type,
+ with the arm option enabled, the other faders should follow. Hold
+ down the Shift key and drag a fader to center it on the original
+ source value (0 for audio, 100 for video).
+\item[Mixer] \index{mixers!toggle} in the expanded patchbay for that track designates
+ the multi-camera mixer mode.
+\item[Overlay mode] \index{overlay pulldown} in the expanded patchbay is used for
+ porter-duff operations and is full explained in
+ \nameref{cha:overlays} chapter.
+\item[Nudge] \index{nudge} is in the expanded patchbay. The nudge value is
+ the amount the track is shifted left or right during playback. The
+ track is not displayed shifted on the timeline, but it is shifted
+ when it is played back. This is useful for synchronizing audio with
+ video, creating fake stereo, or compensating for an effect which
+ shifts time, all without altering any edits
+ (figure~\ref{fig:overlay}).
+
+ \begin{figure}[htpb] \centering
+ \includegraphics[width=0.65\linewidth]{overlay.png}
+ \caption{Video Overlay, audio Pan and Nudge.}
+ \label{fig:overlay}
+ \end{figure}
+
+ Enter the amount of time to shift to instantly shift the
+ track. Negative numbers make the track play later. Positive numbers
+ make the track play sooner. The nudge units are either seconds or
+ the native units for the track (frames or samples). Select the units
+ by right clicking on the nudge textbox and using the context
+ sensitive menu. Nudge settings are ganged with the Gang faders
+ toggle and the Arm track toggle. Use the mouse wheel over the nudge
+ textbox to increment and decrement the value.
+\item[Pan] \index{panning box} is available in the expanded patchbay for audio
+ tracks via a panning box. Position the pointer in the panning box
+ and click/drag to reposition the audio output among the speaker
+ arrangement. The loudness of each speaker is printed on the relative
+ icon during the dragging operation. The panning box uses a special
+ algorithm to try to allow audio to be focused through one speaker or
+ branched between the nearest speakers when more than 2 speakers are
+ used.
+\end{description}