Hi…,
In FMS Data Manager, there are 3 tabs across the top.
In Settings, make sure the Prepar3D v5 is correct.
In the Addon Mappings tab press +Add, for Please select an addon… choose Carenado (all compatible products), for Install into…, choose Prepar3d v5.
In Addon List choose Carenado (all compatible products) and Update
For more information please see FAQ - Installing Navigation Data AIRAC Updates.
Cheers
Ian