visualize knot on the object derived from monocle2

[yxiao832]

I am trying to figure out which knot I should use for earlyDETest on a single cell experiment object derived from monocle2. It seems I can't directly use plotGeneCount for this object to visualize the knot.

I can guess the knot based on the pseudotime value I have in the Monocle object, but would be nice I can directly visualize the knot to make sure. Could you let me is there a way I can look at the knot on the single cell experiment object derived from monocle2?

Thanks!