The properties of MPTSs and SPTSs are organized differently in the GUI to simplify the process of configuring and
maintaining these streams.
MPTSs can be expanded to reveal the individual services they encompass. An MPTS stream provides more PSI
options compared to an SPTS. Both MPTS and SPTS provide the option to map through external PIDs which will
not be signaled in the PSI.
Double clicking on an MPTS reveals port related settings (Edit Multiplex dialog); double clicking on an individual
service inside the MPTS reveals service related settings (Service Properties dialog), as illustrated in Figure
above.