Delete the selected track. The copy is automatically muted. Double a track on two instruments by duplicating a track then setting the Midi Channel of the copy. Shift a track forward or backward in time. Use the dialog to set the shift amount in measures, beats, and ticks.
Negative numbers shift time backwards.
In addition to echo effects mentioned earlier, time-shift can be used to extend a drum or rhythm section. For instance, to get eight choruses of a 12 bar drum pattern, you could record 12 bars, then duplicate and time-shift eight times, then either Merge tracks or Unmerge to Type 1 under the file menu to put all the patterns on one track. This command is not recomended for merging tracks longer than 1000 events or so, because it can become very, very slow on long tracks, due to an inefficient sort algorithm. Select 1 thru 16 and MiniTrax will record and echo on the selected channel. In to the Mac Out.