Hello,
The way to activate/deactivate an assembly component in 3DEXPERIENCE CATIA is very different from the CATIA V5 way.
The easiest way is to use a Product Table. One the Product Table is created you just have to select your component to create a new column and then chose the true/false value.
Another way is to use the EKL language and the SetEffectivity method:
VPMInstance.SetEffectivity("ActivateDeactivate", iExpression : String, iAssociateToReference : Boolean) : Boolean
iExpression : “TRUE” / “FALSE” (activated/deactivated)
iAssociateToReference : true or false
Please note that TER license is needed to create the Rule/Reaction that will activate/deactivate the component. However, no specific license is needed to run the Rule/Reaction.