I took a quick look through the documentation and couldn't find anything on running multilevel CFA/EFA in openmx. Specifically, I'm interested in running a two level CFA where observations are nested within participants. I believe that Muthen (1994) reports a similar model to the one that I am interested in running. Also, is there any documentation on running multilevel EFA? I'm interested in running something similar to Vijver (2002). Thanks!
Muthén, B. O. (1994). Multilevel covariance structure analysis. Sociological Methods & Research, 22, 376-398.
van de Vijver, F.J.R., & Poortinga, Y.H. (2002). Structural equivalence in multilevel research. Journal of Cross-Cultural Psychology, 33, 141–156.