Dear TerrySin,
1. Yes, moldflow could simulate the insert molding which same as your inquiry.
However, if you want to show the level of the adhesion between a insert and a molded part, moldflow doesn't provide that.
2. You can show the deflection of the molded part which including variation of wall thickness of the molded part due to deflection of the instert.
But, I'm not sure that moldflow could provide total deflection considering stiffness and deflection of the insert.
Thanks,