I am a Mac user and I am able to use Tabledit. It works okay, but there are some issues I had when adding chords. It seems that wherever a chord grid is added right above a set of tab notes, the top note disappears. You can either have the chord grid or the tab number on the A string, but not both. That became aggravating, so, I now use Finale exclusively for all of my music notation and tablature. It is a very complex program but does everything.