FTS & Cakewalk

I've managed to relay the output of cakewalk pro audio 9 to the input
of fractal tune smithy via Midi Yoke (so i can actually
hear 'microtonal' music)I have one problem and a question. My problem
is that once i choose a scale with more than 12 tones per octave i'm
only able to hear 12 of them in the Staff view. For instance, i choose
15-TET, set the meter to 5/4 in Staff view (so i can easily hear all
15 pitches, i.e. I should now have five different tones in three
measures, right?)

I am able to hear 12 of the 15 tones per octave when i insert flat(b)
and sharp(#)signs on a standard 12-TET scale (e.g. c-C, for instance.)
I don't know if Cakewalk's staff view recognises double flat, or
double sharp signs. Is there a workaround for this? My question is
whether FTS can output from multiple midi synths on different channels
at the same time? For example, can it output my soundcard's synth on
ch.1 and my hardware synth on ch.2, at the same time?

Thanks in advance.