Start/ Stop: Use the Start and Stop button on the panel to play pause and stop playback. Nothing will output while in the stopped state, and pause will keep you at the position you are at in a trace file but stop output.
Signal Rate: The Signal Rate field for controlling output rate of things like xTP Controls.
Loop: Loop will cause fixed duration traces to restart after they reach the end.
Connect xTP: Connect xTP connects you to an xAF device via AmpSrv, allowing you to use its related features.
Many configuration options are disabled in the playing stage for compatibility reasons.