LISREL SIMPLIS - Syntax clarification

#1
Hi,

I'm running a MIMIC model with four groups (three dummies) using SIMPLIS code in LISREL.

LISREL automatically correlates the errors between the dummy groups and I frustratingly cannot figure out the SIMPLIS code for not letting them correlate. I have tried the following:

SET THE CORRELATIONS OF PHI1-PHI3 TO 0 (also tried COVARIANCES)
SET THE CORRELATIONS OF D1-D3 TO 0 (also tried COVARIANCES and specifying each path individually)
LET THE ERRORS BETWEEN D1 AND D2 BE FIXED (for all relationships)

Any ideas? I'm new to LISREL and this type of coding in general (raised on SPSS), and everything I'm finding online isn't helping.

Thanks

AC