Hello everyone: I upgraded to the new version of yt, and I noticed there was a change in unit designation. I used to be able to specify units in comoving units of kpc as: "kpccm", but that functionality now appears to be broken. Does anyone know what the new syntax is for using comoving units? Here is a code example that used to work, but it no longer does in the new version: pf = EnzoStaticOutput(filename) thick_faceon = 10.0/pf['kpccm'] Thanks! Cameron -- Cameron Hummels PhD Candidate, Astronomy Department of Columbia University Public Outreach Director, Astronomy Department of Columbia University NASA IYA New York State Student Ambassador http://outreach.astro.columbia.edu