@terence-tegner: SFPM is not a port of the Windows program, but a from-scratch, separate Mac application. It does not duplicate the functions of the Windows Sound Forge Pro, although it is inspired by it. They (Sony, who originally developed it) probably should have given it a somewhat different name, so that users would not expect feature/interface parity with the Windows product. Maybe "Sound Smithy" or "Audio Forge" or "Sound Forge Amateur." 😉
That said, a SFPM license does give you batch processing capability, but it's via a separate app, Convrt, that gets installed when you install SFPM. So if you haven't yet explored Convrt, launch it and see if it works for you. I haven't used it myself.