+The current \textit{Gang Tracks} mode is saved across sessions and will be saved in your project. Although most likely users will work in the \textit{Gang None} mode, users more familiar with DAW software will tend to use the \textit{Gang Channel}s mode.
+
+More details are described next about master tracks. Each patchbay has a \textit{Master Track} button on the extreme right of the patchbay. These mark which tracks of the media are master tracks. The span of tracks between the gang group masters are the gang track group. The master track toggles can be disabled/enabled as the user wishes to create the desired track groups. Normal file loads will mark the first stream of each file loaded as a master, if the media is loaded with insertion strategy of\textit{ Replace current project}, \textit{Replace current project and concatenate tracks} or \textit{Append in new tracks}. Frequently, editing is done on video, audio, or audio/video groups to maintain timeline synchronization. By grouping related tracks, this procedure is much more automatic.
+
+Previously existing projects created before the addition of ganged tracks, will have ALL tracks marked as master tracks and changing the \textit{Gang Tracks} button mode will have no effect. The user will have to properly designate which track is the master track and disabling the others in order to make use of the toggle modes.
+
+There are no restrictions on how you use this feature and there may be variations for users not concerned about DAW-like workings that are very useful. Several methodologies are possible, but you have to know what you are doing.
+
+NOTES:
+\begin{itemize}
+ \item When in \textit{Gang Channels} or \textit{Gang Media} mode, if the first audio track is not disarmed, but any of its connected channel tracks are, the disarm of those channels are ignored and all channels are treated as being armed. This is to be consistent with the purpose of using this mode; the purpose being that any edits to the first master track are automatically propagated to all other channels.
+ \item It may be better when using the \textit{Gang Channels} or \textit{Gang Media} mode to make any changes
+ to the first audio channel to be automatically duplicated before reverting to the \textit{Gang None} mode to make other changes. Once you start changing individual channels (that is, audio tracks) so that they are no longer coordinated in their edits/plugins, it may be more difficult to switch back to \textit{Gang Channels} mode and get the desired results since the channels may no longer be lined up.
+ \item Gang modes should not be used with Multi-camera/Mixers because they have very specific
+operational capabilities which are not compatible with the way that Ganging works.
+ \item Gang flags in the patchbay specifically when in \textit{Gang Channels} or \textit{Gang Media} modes will
+operate as set in the Master Track. For example, if when in \textit{Gang Channels} mode, you turn off
+“Play track” on the visible audio track, none of the associated channels (i.e. the other stereo or
+other 5 channels will play). And if in \textit{Gang Media} mode, if you turn on “Play track” for the
+Master Track, all associated video and audio tracks will play unless you turned off “Play track” for
+some of the associated audio/video slave tracks which will not play.
+ \item When adding a Plugin/Effect in \textit{Gang Channels} or \textit{Gang Media} mode to the track, highlighted selected region, or In/Out pointers area via
+ dragging the plugin from the Resources Window the plugin will be added on the master and all slave tracks. If using the Audio or Video pulldown, \textit{Attach Effect} option and you want
+to propagate the effect to all slave tracks, make sure that the checkbox for "Attach single standalone
+and share others" in the Dialog window is checked. However, currently when using the right mouse button (RMB) on the master track to \textit{Attach effect}, the effect will only be inserted on that track.
+
+\end{itemize}
+
+\section{Two Screen Editing}%
+\label{sec:two_screen_editing}
+\index{two-screen}
+
+This is a fast way to construct a program out of movie files (in
+other programs is called \textit{three points editing}). The idea
+consists of viewing a movie file in one window and viewing the
+program in another window. Subsections of the movie file are defined
+in the viewer window and transferred to the end of the program in
+the program window. Two screen editing can be done simply by using
+keyboard shortcuts. To get familiar with which keys to use, move
+the mouse pointer over the transport panel and a tooltip appears,
+showing what key is bound to that button.
+
+To begin a two screen editing session, load your media resources by
+using the main menu \textbf{File pulldown} and choose \textit{Load
+ files} \index{load media files}; make sure the insertion mode is set to \textit{Create new
+ resources only}. This insertion strategy \index{insertion strategy} is to ensure that the
+timeline stays unchanged while new resources are brought in. Go to
+the Resources window \index{resources window} and select the Media folder. The newly loaded
+resources will appear. Double click on a resource or drag it from
+the media side of the window over to the Viewer window \index{viewer!window}.
+
+Check to make sure there are enough armed tracks on the timeline to
+put the subsections of source material that you want. Usually this
+would be one video track and two audio tracks, but if there are not
+enough, just create new tracks or arm more tracks.
+
+Now to start your 2 screen editing, in the viewer window, define a
+clip from the media file:
+
+\begin{enumerate}
+\item Set the starting point with the In pointer button. You
+ will see a left hand bracket on the timebar.
+\item Move your cursor to the ending point of the clip you want
+ to use.
+\item Set the ending point with the Out pointer right hand
+ bracket.
+\item You will see a colored bar inside the brackets for easier
+ viewing.
+\item Drag the In/Out point \index{in/out point} with the mouse to conveniently
+ change their position.
+\end{enumerate}
+
+These In/Out points define a clip \index{clip}. You can now use this in a couple
+of different ways.
+
+\paragraph{Splice} \index{splice} The splice icon, or shortcut letter “\texttt{v}”,
+inserts the selected area in the timeline after the insertion point.
+After the splice has taken effect, the insertion point moves to the
+end of the edit ready to be used as the next splice location. This
+way you can continuously build up the program by splicing. If an In
+point or an Out point exists on the timeline the clip is inserted
+after the In point or after the Out point. If both In and Out points
+are set on the timeline, the clip is inserted after the In point. If
+there are edits after your chosen splice location on the timeline,
+they will be moved to the right.
+
+\paragraph{Overwrite} \index{overwrite} The overwrite icon, or shortcut letter
+“\texttt{b}”, overwrites the region of the timeline after the
+insertion point with the clip. If an In point or an Out point exists
+on the timeline the clip is overwritten after the In point or after
+the Out point. If both In and Out points are set on the timeline,
+the clip is inserted after the In point. If a region is highlighted
+or both In and Out points exist they limit the region of the
+overwriting and the clip may therefore be shortened. Here is a
+detailed explanation to take advantage of this method.