Snuffling around in MxPPMLR I see
# IN DEVELOPMENT
# Fake Latents
# There are multiple ways to specify the error variance terms. There is the
# usual, direct way of allowing the term in the S matrix to be free, but it
# can also be specified using latent variables.
# This segment adjusts the model so that all error variance is specified using
# only the S matrix, without any latent variables
This raised a question for me.
I guess this is designed to do change this:
But how should one implement this:?