Ex refusing to work

In NYS - I pay $1,500 per month in child support to my ex, even when I see the kids 50% of the time.

She's choosing to not work. She has good experience and a degree, but choosing to not work (because she just had another kid with her boyfriend/affair partner).

I know the courts can impute costs - but can courts order her to work? The reason I ask is because she doesn't understand that I have to work and is always causing issues with working. It makes no sense.