The Space instrument is actually one of the 1st so called Wavetable Synthesizers. Honestly, I use FL Studio, and Serum, and then I record the sounds using Edison. Then, I use my Audio Editor to cut, and upload the sounds to Audiotool as Samples. That's the best thing I know to tell you friend, because Audiotool is a browser based program, and all the instruments are from the old school days, like from the 90's, meaning it's not gonna be able to match up to most of the updated programs like Ableton, FL Studio, Cubase, or Pro Logic. Hope that helps homie.
Phase mod is nothing like wavetable synthesis, I'm afraid.
You can automate the waveforms on the heisenberg, but as it's not smooth transitions between these waveforms it's not what you're after.
You can get much smoother transitions between the basic waveforms that the pulv provides.
You can also use the space to transition between the number of harmonics in the waveform and after setting up A and B oscillators as having different waveforms, you could transition between them..but again, it's not exactly what you're after there either. It's more of a crossfade than a true interpolation of the waveforms.
The Space instrument is actually one of the 1st so called Wavetable Synthesizers. Honestly, I use FL Studio, and Serum, and then I record the sounds using Edison. Then, I use my Audio Editor to cut, and upload the sounds to Audiotool as Samples. That's the best thing I know to tell you friend, because Audiotool is a browser based program, and all the instruments are from the old school days, like from the 90's, meaning it's not gonna be able to match up to most of the updated programs like Ableton, FL Studio, Cubase, or Pro Logic. Hope that helps homie.