Dear Amir,

In the case of SEM, both JAMOVI and JASP are just a graphical shell for some SEM R packages, e.g., like as lavaan and semTools. So you could find documentation for these R packages, e.g., for lavaan on http://lavaan.ugent.be/

I think JASP (which I like a lot) can be a good "entry point" into SEM because it relies on lavaan while limiting the necessary coding to a minimum. It also gives you really nice tables.

Thank you for sharing these information.

I love JASP. It's very easy and better than SPSS (except for the figures, which are so ugly).