The manual lists the waveforms thus:
CFG (Osc Config) selects the waveforms and interaction of the two oscillators. There are two dif- ferent waveforms for oscillator 1 (sine, sinesaw) and five different waveforms for oscillator 2 (sine, skewed sine, triangle, sinesaw, saw).
Can you explain “coaxed into a square-like waveform”? Are you saying the “skewed sine” or “sine-saw “square-like”?
If you scroll a little until the little R appears under CFG, which changes the osc configuration to ringmod, you can get square like sounds out of it. Not really a perfect square, tho ofc.
I guess that’s what @Roger means?
Gotcha. Experientially, I knew this and have made some sounds with it. I hadn’t really thought to connect the dots properly to “I’m wrangling square waves now”.
Would anyone be super kind to share how to get it?
(I’ll Give it a try later today and share if I get it)
I usually just set balance to +63, Tun to 0, both Dec to 127, amp hold and release to inf, hit the pad and then try different Detune values with the ringmod configurations that seem promising. Then maybe turn back osc balance a bit and/or play with Tun also.
IIRC this sounded a little squarish:
Cfg=35
Tun=0
Det=-7
Bal=+63
Btw, the DVCO produces beautiful intricate shaped waveforms on the oscilloscope. If you can get just a little movement going with ringmod and/or fm by slowely modulating detune or osc balance, it morphs through really interesting shapes. Pretty wild stuff 
This is a good freeware oscilloscope plugin, if anyone is interested.