Looking for STATA experts mastering the SEM and multilevel analysis. -- 2

I am looking for a STATA expert to help me with my code of SEM and multilevel analysis. My model is composed from: - A Predictor P, a continuous variable with items from P1 to P6. - A Mediator M, a higher order and continuous variable with the first order variables as follows: ==> Mp a continuous variable with items from Mp1 to Mp4 ==> Mr a continuous variable with items from Mr1 to Mr4 - An outcome O, a continuous variable with items from O1 to O5 - A first Moderator S between the predictor P and the Mediator M. ==> S is a continuous variable with items from S1 to S7. - A second moderator K between the Mediator M and the Outcome O. ==> K is a continuous variable with items from K1 to K7. - Control variables are observed variables C1 C2 C3 C4 and C5. Questions: 1- At a firm level, I want to apply the SEM on my model: I already did that, but I want to back-test my results. ==> a CFA should be done on my model ==> I have some doubts about how the higher order Mediator should be coded. ==> I have some doubts about how to code the interaction terms of the moderators. ==> I need to do the invariance testing. 2- At a Dyadic level (Multilevel analysis), I want to apply the SEM on my model, knowing that: - I have a set of data for Clients, where all the variables shown before are named including a small c. - I have a set of data for Suppliers, where all the variables shown before are named including a small s. - I have dyads where: ==> Dyad1 is composed from (Client1; Supplier 1) ==> Dyad2 is composed from (Client2; Supplier 2) ==> … ==> Dyad120 is composed from (Client120; Supplier120) - I want to apply the SEM on my model knowing that: ==> The Predictor P, the Outcome O and the controlling variables C1 and C2 and C3 are at dyadic level. ==> The Mediator (M ==> Mp, Mr), the Moderators S and K, and the controlling variables C4 and C5 are at firm level. ==> I need the code for the SEM for a multilevel analysis. PS: See more details about my model and my questions on the attached file.