Mono mode

[dsx707]

Is there a way to make the synths say Musynth be played monophonic?

[MuTools]

Not yet, it's on the wishlist.

[dsx707]

Not yet, it's on the wishlist.

Is pulse width modulation also so to be added in a future update?

[MuTools]

That's already in there:

Use a straight saw tooth and enable AIPS.
AIPS = Add Inverted Phase Shifted.
Combining 2 phase-shifted sawtoots, one of which inverted, results in in pulse.
Put an LFO on the AIPS and you got PWM.
All also directly possible using the MuSynth.